A living guide to Kauaʻi

Kauaʻi species, habitats and conservation records

Explore the island’s native and introduced species, habitats, watersheds and conservation work. Each record connects its description, images and sources with the interactive Atlas.

Page 28 of 58

• 

  Amastra rugulosa

  Amastra rugulosa

  Five Bishop Museum checklist entries at subspecies rank explicitly report Kauai. MolluscaBase/WoRMS Aphia 1423707 accepts Amastra rugulosa; subspecies are collapsed at species rank only. Terrestrial; marine depth screen not applicable. H

• 

  Amastra similaris

  Amastra similaris

  Bishop Museum checklist explicitly reports Kauai. MolluscaBase/WoRMS Aphia 1716488 accepts Amastra similaris. Terrestrial; marine depth screen not applicable. Historical Kauai occurrence and accepted identity are supported, without moder

• 

  Amastra sphaerica

  Amastra sphaerica

  Bishop Museum checklist explicitly reports Kauai. MolluscaBase/WoRMS Aphia 1615885 accepts Amastra sphaerica. Terrestrial; marine depth screen not applicable. Historical Kauai occurrence and accepted identity are supported, without moder

• 

  Anatoma pseudoequatoria

  Anatoma pseudoequatoria

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations. MolluscaBase/WoRMS Aphia 594440 accepts Anatoma pseudoequatoria. Report 29a sampled harbors and nearby coral reefs during 2002-2003, within nearshore sc

• 

  Antisabia foliacea

  Antisabia foliacea

  Bishop Museum Technical Report 29a records the taxon at Kauai coastal stations; two dated observations corroborate. MolluscaBase/WoRMS Aphia 598655 accepts Antisabia foliacea. The authoritative survey covered harbors and nearby coral reef

• 

  Apataxia cerithiiformis

  Apataxia cerithiiformis

  Bishop Museum Technical Report 29a records the taxon at Kauai coastal stations; dated observations corroborate. MolluscaBase/WoRMS Aphia 871015 accepts Apataxia cerithiiformis. The survey covered harbors and nearby coral reefs. Bishop Mu

• 

  Arakawania granulata

  Arakawania granulata

  Bishop Museum Technical Report 29a records the taxon at Kauai coastal stations; dated observations corroborate. MolluscaBase/WoRMS Aphia 1775215 accepts Arakawania granulata. The survey covered harbors and nearby coral reefs. Bishop Muse

• 

  Atagema echinata

  Atagema echinata

  The expert account cites Kay (1979) for occurrence on Kauai. MolluscaBase/WoRMS Aphia 872604 accepts Atagema echinata. Kay's account is summarized as shallow reef platforms and back-reef habitats on Oahu and Kauai. The expert account exp

• 

  Hilo Risso

  Bittinella hiloensis

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations. MolluscaBase/WoRMS Aphia 887301 accepts Bittinella hiloensis. The 2002-2003 survey sampled harbors and nearby coral reefs. Bishop Museum Technical Repo

• 

  Impending Horn

  Bittium impendens

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations. MolluscaBase/WoRMS Aphia 473076 accepts Bittium impendens. The 2002-2003 survey sampled harbors and nearby coral reefs. Bishop Museum Technical Report

• 

  Asian trampsnail

  Bradybaena similaris

  Cowie (1997) explicitly lists Kauai among the island occurrences. The catalog treats Helix similaris Rang as the valid-name basis; MolluscaBase/WoRMS Aphia 875284 accepts Bradybaena similaris. Terrestrial; marine depth screen not applicab

• 

  Divided caecum

  Caecum sepimentum

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations; a dated observation corroborates. MolluscaBase/WoRMS Aphia 545358 accepts Caecum sepimentum. The 2002-2003 survey sampled harbors and nearby coral reefs

• 

  Marbled top shell

  Calliotrochus marmoreus

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations. MolluscaBase/WoRMS Aphia 567748 accepts Calliotrochus marmoreus. The 2002-2003 survey sampled harbors and nearby coral reefs. Bishop Museum Technical R

• 

  Calloarca nuttingi

  Calloarca nuttingi

  Bishop Museum Technical Report 29a records direct presence at Kauai coastal stations. MolluscaBase/WoRMS Aphia 504422 accepts Calloarca nuttingi. The 2002-2003 survey sampled harbors and nearby coral reefs. Bishop Museum Technical Report

• 

  Catinella explanata

  Catinella explanata

  Bishop Museum Hawaiian Biological Survey species checklist explicitly lists island 'Kauai' for Catinella explanata. MolluscaBase/WoRMS AphiaID 1459884 lists Catinella explanata as accepted and terrestrial. Terrestrial taxon; marine depth

• 

  Catinella rubida

  Catinella rubida

  Bishop Museum Hawaiian Biological Survey species checklist explicitly lists island 'Kauai' for Catinella rubida. MolluscaBase/WoRMS AphiaID 832102 lists Catinella rubida as accepted and terrestrial. Terrestrial taxon; marine depth filter

• 

  Black-foot ʻOpihi · ʻOpihi Makaiauli

  Cellana exarata

  Bishop Museum TR29 table records presence at Kauaʻi stations Ka1 and Ka3; iNaturalist RG observations 251416561 (Nawiliwili, 2024-11-06) and 320555552 (Glass Beach, 2025-10-12) are explicitly georeferenced on Kauaʻi Island. WoRMS AphiaID 3

• 

  Yellow-foot ʻOpihi · ʻOpihi ʻĀlinalina

  Cellana sandwicensis

  Bishop Museum TR29 table marks Kauaʻi station Ka3; iNaturalist RG observations 96337115 (Kīlauea, 2021-09-26) and 201554386 (Kōloa, 2024-03-05) have explicit Kauaʻi Island coordinates. WoRMS AphiaID 571924 lists Cellana sandwicensis as acc

• 

  Kangaroo Nudibranch

  Ceratosoma tenue

  Sea Slugs of Hawaii explicitly includes Kauai in its distribution; iNaturalist RG observations 44648118 (Kōloa Landing, 2020-04-26) and 178325167 (2022-12-22; 22.0101692,-159.3291802) are on Kauaʻi Island. WoRMS AphiaID 212893 lists Cerato

• 

  Cerithidium diplax

  Cerithidium diplax

  Bishop Museum TR29 coastal-survey table explicitly marks Cerithidium diplax at Kauaʻi station(s), using the report's Ka station columns. WoRMS AphiaID 397036 lists Cerithidium diplax as accepted. Evidence is from an island-coded shallow c

• 

  Cerithidium perparvulum

  Cerithidium perparvulum

  Bishop Museum TR29 coastal-survey table explicitly marks Cerithidium perparvulum in the Kauaʻi station columns. WoRMS AphiaID 397037 lists Cerithidium perparvulum as accepted. Evidence is from an island-coded shallow coastal marine survey

• 

  Cerithium interstriatum

  Cerithium interstriatum

  Bishop Museum TR29 coastal-survey table explicitly marks Cerithium interstriatum in Kauaʻi station columns. WoRMS AphiaID 473101 lists Cerithium interstriatum as accepted. Station evidence comes from the shallow coastal marine survey, sat

• 

  Chama asperella

  Chama asperella

  Bishop Museum TR29 coastal-survey table explicitly records Chama asperella in Kauaʻi station columns. WoRMS AphiaID 208488 lists Chama asperella as accepted. The record is from a shallow coastal marine survey station, not deep-water or ra

• 

  False Cup-and-Saucer

  Cheilea equestris

  Bishop Museum TR29 coastal-survey table explicitly marks Cheilea equestris in Kauaʻi station columns. WoRMS AphiaID 212110 lists Cheilea equestris as accepted. The occurrence is tied to a shallow coastal marine survey station, not a gener

• 

  Spotted Swallowtail Slug

  Chelidonura alisonae

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 12653416 (2018-05-20) and 47378709 (2020-05-25) are georeferenced on Kauaʻi near Salt Pond/ʻEleʻele. WoRMS AphiaID 559045 lists Chelidonura alisonae as accepted. E

• 

  Blue Swallowtail Slug

  Chelidonura hirundinina

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 195283501 (Poʻipū, 2014-05-07) and 7529305 (Kalihiwai, 2017-08-16) are on Kauaʻi Island. WoRMS AphiaID 420528 lists Chelidonura hirundinina as accepted; expert acco

• 

  Purple-spotted Nudibranch

  Chromodoris aspersa

  Bishop Museum TR29 records Kauaʻi station presence; Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 19264964 (Poʻipū, 2018) and 270632977 (Ahukini, 2021) have Kauaʻi coordinates. WoRMS AphiaID 558319 lists Chromo

• 

  Black-and-white Cone

  Conus ebraeus

  HCRI Final Report records this species at Kauaʻi stations KARA2 and KARA7; iNaturalist records include 35342915 from Lawai reef platform and 98231176 from Poʻipū. WoRMS AphiaID 215436 lists Conus ebraeus as accepted. KARA2 is Beach House

• 

  Yellow Pacific Cone

  Conus flavidus

  HCRI Final Report records Conus flavidus at Kauaʻi stations KARA2, KARA3, and KARA7; iNaturalist adds Lawai Beach (1999) and Princeville (2007) observations. WoRMS AphiaID 215518 lists Conus flavidus as accepted. HCRI stations are explici

• 

  Miliaris Cone

  Conus miliaris

  Bishop Museum TR29 coastal-survey table explicitly records Conus miliaris in Kauaʻi station columns. WoRMS AphiaID 215533 lists Conus miliaris as accepted. Direct shallow coastal survey context satisfies marine scope. Accepted species wi

• 

  Hawaiian Penniform Cone

  Conus purus

  Marine Life Photography labels a Kauaʻi specimen ('form Elisae, Kauai, 29 mm'); iNaturalist RG observations 67820400 (Poʻipū, 2002-12-30) and 320988061 (Baby Beach, 2025-10-14) have explicit island coordinates. WoRMS AphiaID 429445 lists C

• 

  Few-ribbed Cookeconcha

  Cookeconcha paucicostata

  Bishop Museum freshwater/terrestrial checklist explicitly lists Cookeconcha paucicostata for 'Kauai.' MolluscaBase/WoRMS AphiaID 1264722 lists Cookeconcha paucicostata as accepted and terrestrial. Terrestrial taxon; marine filter does not

• 

  Ribbed Coral Snail

  Coralliophila costularis

  Bishop Museum TR29 coastal-survey table explicitly records Coralliophila costularis in Kauaʻi station columns. WoRMS AphiaID 208124 lists Coralliophila costularis as accepted. Station-level shallow coastal survey evidence satisfies nearsh

• 

  Brown Garden Snail

  Cornu aspersum

  Cowie (1997) catalog lists Helix aspersa (= Cornu aspersum) with island code K for Kauaʻi. MolluscaBase/WoRMS AphiaID 820000 lists Cornu aspersum as accepted; inspected catalog uses historical combination Helix aspersa. Terrestrial introd

• 

  Desirable Nudibranch

  Coryphellina exoptata

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 334279 (Sheraton Caverns, 2010-03-22) and 44658347 (Poʻipū dive site, 2019-10-06) are island-georeferenced. WoRMS AphiaID 1047492 lists Coryphellina exoptata as acc

• 

  Frida’s Costasiella

  Costasiella fridae

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of Costasiella fridae; iNaturalist observation 244845094 is tagged Kauai County but mapped inland and therefore is not used as locality proof by itself. WoRMS AphiaID 163508

• 

  Leaf Sheep

  Costasiella kuroshimae

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist observation 244845095 is tagged Kauai County but mapped inland and is not relied on alone. WoRMS AphiaID 494655 lists Costasiella kuroshimae as accepted; expert account notes possi

• 

  Bourbon Cyerce

  Cyerce bourbonica

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observation 44658123 is dated 2019-11-04 at Kōloa Landing, Kauaʻi. WoRMS AphiaID 599819 lists Cyerce bourbonica as accepted. Expert account gives a <1-6 m (<3-20 ft) shallow be

• 

  Liliʻuokalani Cyerce

  Cyerce liliuokalaniae

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of Cyerce liliuokalaniae. WoRMS AphiaID 1814160 lists Cyerce liliuokalaniae as accepted; expert account notes the 2025 DNA-based description and bridges older Hawaiian usage

• 

  Hawaiian Tiger Cowrie

  Cypraea tigris

  Bishop Museum TR29 records Kauaʻi station presence; iNaturalist RG observations 337488635 (Tunnels Beach, 2025), 310675006 (Poʻipū, 2022), and 203389640 (Salt Pond area, 2024; subspecies schilderiana) are island-georeferenced. WoRMS AphiaI

• 

  Carbunculous Nudibranch

  Dendrodoris carbunculosa

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of Dendrodoris carbunculosa. WoRMS AphiaID 537025 lists Dendrodoris carbunculosa as accepted; expert account distinguishes it from D. tuberculosa and notes historical photo

• 

  White-and-brown Dendrodoris

  Dendrodoris elongata

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 263958586 and 260031082 are dated 2025 at Salt Pond/Port Allen, Kauaʻi. WoRMS AphiaID 533873 lists Dendrodoris elongata as accepted; expert account notes older Hawa

• 

  Gem Doris

  Dendrodoris krusensternii

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist observation 120107 documents a 2012 Kōloa Landing animal identified with expert Pauline Fiene as the first Kauaʻi record; observation 178324987 adds a 2023 island record. WoRMS Aph

• 

  Black Dendrodoris

  Dendrodoris nigra

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 254153620 (2024) and 259878903 (2025) are from Salt Pond/Port Allen on Kauaʻi. WoRMS AphiaID 139519 lists Dendrodoris nigra as accepted; expert account bridges hist

• 

  Tuberculous Nudibranch

  Dendrodoris tuberculosa

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 144957736 (Poʻipū, 2014) and 333534578 (Salt Pond area, 2026) have explicit island coordinates. WoRMS AphiaID 537016 lists Dendrodoris tuberculosa as accepted; expe

• 

  Lined Horn

  Diala semistriata

  Bishop Museum TR29 coastal-survey table explicitly records Diala semistriata in Kauaʻi station columns. WoRMS AphiaID 211927 lists Diala semistriata as accepted. Direct shallow coastal survey station evidence. Accepted species with direc

• 

  Dubious Bubble

  Diniatys dubius

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of Diniatys dubius. WoRMS AphiaID 599460 lists Diniatys dubius as accepted; expert account bridges Haminoea sp. 2 and probable historical Atys costulosa usage. Expert accou

• 

  Octagon Keyhole Limpet

  Diodora octagona

  Bishop Museum TR29 coastal-survey table explicitly records Diodora octagona in Kauaʻi station columns. WoRMS AphiaID 571921 lists Diodora octagona as accepted. Direct shallow coastal station survey evidence. Accepted species with direct

• 

  Eared Sea Hare

  Dolabella auricularia

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 104899883 (Poʻipū, 2022) and 8473676 (Kōloa, 2017) have explicit island coordinates. WoRMS AphiaID 208629 lists Dolabella auricularia as accepted; expert account br

• 

  Common Sea Hare

  Dolabrifera dolabrifera

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observations 199531433 (Poʻipū, 2024) and 12283871 (ʻAnini Road coast, 2017) are island-georeferenced. WoRMS AphiaID 224652 lists Dolabrifera dolabrifera as accepted; expert acc

• 

  Doriopsis pecten

  Doriopsis pecten

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of this species. WoRMS AphiaID 761890 lists Doriopsis pecten as accepted; WoRMS AphiaID 761891 marks Doris pecten a superseded combination and bridges it to Doriopsis pecten

• 

  Doris immonda

  Doris immonda

  Sea Slugs of Hawaii explicitly restricts the listed Hawaiian distribution to Kauai and French Frigate Shoals. WoRMS AphiaID 549227 lists Doris immonda as accepted; expert account warns it is not the taxon illustrated under Siraius immonda

• 

  Nucleola Dorid

  Doris nucleola

  Sea Slugs of Hawaii explicitly includes Kauai in the distribution of Doris nucleola. WoRMS AphiaID 594426 lists Doris nucleola as accepted; expert account bridges Doriorbis nucleola and probable Doris papillosa while noting possible color-

• 

  Mulberry Drupe

  Drupa morum

  HCRI Final Report records Drupa morum at Kauaʻi rapid-assessment stations KARA4 and KARA5; iNaturalist records 6515330 (Salt Pond coast, 2017) and 144743144 (Poʻipū, 2022 partial shell) provide later island evidence. WoRMS AphiaID 459085 l

• 

  Horn Drupe

  Drupella cornus

  Bishop Museum TR29 coastal-survey table explicitly records Drupella cornus in Kauaʻi station columns. WoRMS AphiaID 212155 lists Drupella cornus as accepted. Direct shallow coastal survey station evidence. Accepted coral-associated gastr

• 

  Hawaiian Periwinkle · Pipipi Kōlea

  Echinolittorina hawaiiensis

  Bishop Museum TR29 records Kauaʻi station occurrence; iNaturalist RG observations 17813013 and 17389649 are dated 2018 at Anahola, Kauaʻi with precise coordinates. WoRMS AphiaID 437367 lists Echinolittorina hawaiiensis as accepted. Observ

• 

  Bivalved Sacoglossan

  Edenttellina pseudochloris

  Sea Slugs of Hawaii states the species was first recorded in Hawaiʻi from Kōloa, Kauaʻi by Allison Kay on 1961-11-25 and includes Kauai in its distribution. WoRMS AphiaID 1827233 lists Edenttellina pseudochloris as accepted; WoRMS AphiaID

• 

  Luakaha Micro-snail

  Elasmias luakahaense

  iNaturalist RG observations 144367735 (2022-12-11) and 258224832 (Nā Pali-Kona Forest Reserve, 2025-01-10) have explicit Kauaʻi Island coordinates; the first states 'On ginger leaf.' MolluscaBase/WoRMS AphiaID 1380891 lists Elasmias luakah

• 

  Lobed Elysia

  Elysia lobata

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observation 193637890 is dated 2010-05-05 at the Salt Pond/Port Allen coast of Kauaʻi. WoRMS AphiaID 494457 lists Elysia lobata as accepted. Expert account gives a shallow 1-2

• 

  Ornate Sap-sucking Slug

  Elysia marginata

  Sea Slugs of Hawaii explicitly includes Kauai; iNaturalist RG observation 44650089 documents Elysia marginata during a 2020 night dive at Salt Pond/Port Allen, Kauaʻi; observation 244845111 adds a 2024 island record though its coordinate is