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.
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Tornatellides productus
Tornatellides productus
Bishop Museum checklist explicitly records Tornatellides productus from Kauaʻi. Fresh WoRMS/MolluscaBase query returned Tornatellides productus accepted (AphiaID 1487119). Terrestrial land snail. Institutional island record plus accepted
Trapania euryeia
Trapania euryeia
Sea Slugs of Hawaiʻi explicitly lists Kauaʻi, but the main page provides no dated Kauaʻi specimen. Fresh WoRMS/MolluscaBase query returned Trapania euryeia accepted (AphiaID 457509). Expert account reports rocky habitats at <1-8 m. Exper
Trichamathina bicarinata
Trichamathina bicarinata
TR29a appendix records source-name Amathina bicarinatus at a Kauaʻi station. Fresh WoRMS/MolluscaBase query returned Trichamathina bicarinata accepted (AphiaID 1732952), bridging the older Amathina combination. TR29a sampled shallow harbo
Tryonia porrecta
Tryonia porrecta
Peer-reviewed Sedimentology study identifies Tryonia porrecta shells in multiple Anahola Valley, Kauaʻi cores and Makauwahi Sinkhole deposits. Fresh WoRMS/MolluscaBase query returned Tryonia porrecta accepted (AphiaID 886630). Study ident
Tubulophilinopsis pilsbryi
Tubulophilinopsis pilsbryi
Sea Slugs of Hawaiʻi explicitly lists Kauaʻi; 2022 and 2024 community observations corroborate. Fresh WoRMS/MolluscaBase query returned Tubulophilinopsis pilsbryi accepted (AphiaID 1055261); expert account documents Philinopsis/Aglaja hist
Vayssierea felis
Vayssierea felis
Sea Slugs of Hawaiʻi explicitly lists Kauaʻi in distribution, without a dated Kauaʻi specimen on the main page. Fresh WoRMS/MolluscaBase query returned Vayssierea felis accepted (AphiaID 597200); expert account documents Okadaia elegans hi
Vellicolla muscaria
Vellicolla muscaria
Sea Slugs of Hawaiʻi lists Kauaʻi under the source spelling Vellicolla muscarius. Fresh WoRMS/MolluscaBase query returned Vellicolla muscaria accepted (AphiaID 1342098); the expert page uses the gender variant muscarius. Expert account re
Verconia simplex
Verconia simplex
Sea Slugs of Hawaiʻi explicitly lists Kauaʻi but supplies no dated Kauaʻi specimen on the main page. Fresh WoRMS/MolluscaBase query returned Verconia simplex accepted (AphiaID 866663); expert account notes Hypselodoris peasei/Noumea simple
Verconia varians
Verconia varians
Sea Slugs of Hawaiʻi explicitly lists Kauaʻi; a 2020 community observation corroborates. Fresh WoRMS/MolluscaBase query returned Verconia varians accepted (AphiaID 866667); expert account notes Thorunna/Noumea historical usage. Expert acc
Vexillum tusum
Vexillum tusum
TR29a appendix (PDF p.115/printed p.107) records Vexillum tusum at Kauaʻi station Ka4 (Port Allen reef). Fresh WoRMS/MolluscaBase query returned Vexillum tusum accepted (AphiaID 758960). Ka4 was a shallow coral-reef station surveyed under
Vexillum unifasciale
Vexillum unifasciale
TR29a appendix (PDF p.115/printed p.107) records source spelling Vexillum unifascialis at Kauaʻi station Ka4. Fresh WoRMS/MolluscaBase query returned Vexillum unifasciale accepted (AphiaID 751923); source spelling is normalized for gender.
Viriola incisa
Viriola incisa
TR29a appendix (PDF p.112/printed p.104) records Viriola incisa at Kauaʻi station Ka2. Fresh WoRMS/MolluscaBase query returned Viriola incisa accepted (AphiaID 216732). Ka2 is Nawiliwili Harbor; TR29a used shallow underwater searches and
Viriolopsis fallax
Viriolopsis fallax
TR29a appendix (PDF p.112/printed p.104) records source-name Viriola fallax at Kauaʻi station Ka4. Fresh WoRMS/MolluscaBase query returned Viriolopsis fallax accepted (AphiaID 591898), bridging Viriola fallax. Ka4 is Port Allen shallow co
Vitrina tenella
Vitrina tenella
Bishop Museum terrestrial mollusk checklist explicitly assigns Vitrina tenella to Kauaʻi. Fresh WoRMS/MolluscaBase query returned Vitrina tenella accepted (AphiaID 1375730). Terrestrial land snail; marine habitat filter does not apply. I
Williamia radiata
Williamia radiata
TR29a appendix (PDF p.124/printed p.116) records Williamia radiata at Kauaʻi stations Ka2, Ka3, and Ka4. Fresh WoRMS/MolluscaBase query returned Williamia radiata accepted (AphiaID 559198). The stations are Nawiliwili Harbor and Poʻipū/Po
Zebina tridentata
Zebina tridentata
TR29a appendix (PDF p.109/printed p.101) records Zebina tridentata at Kauaʻi station Ka4. Fresh WoRMS/MolluscaBase query returned Zebina tridentata accepted (AphiaID 216962). Ka4 is Port Allen shallow coral reef, surveyed underwater in Oc
Red-rimmed Melania
Melanoides tuberculata
Bishop Museum catalogue lists the species on Kauai (K) as established; six inspected 2008 Kauai watershed sheets record it as introduced and present.
Obelisk Creeper
Rhinoclavis sinensis
The NOAA-hosted HCRI Final Report records Rhinoclavis sinensis in the Kauai reef-survey row; 2002 Kauaʻi observations corroborate.
Cerithium zebrum
Cerithium zebrum
A small horn snail with straight-sided whorls and a short aperture. A verified Port Allen survey mark and a dated Poʻipū shell photograph support qualified Kauaʻi occurrence.
Ittibittium parcum
Ittibittium parcum
Bishop Museum TR29 records Ittibittium parcum at Kauai stations; a 2018 Poipu record is annotated alive.
Carinapex minutissima
Carinapex minutissima
A tiny Indo-Pacific marine snail documented by examined Kauaʻi specimens in a 2015 revision. Its original identity is retained, with older name-based survey records qualified against later species distinctions.
Livid Cone
Conus lividus
Bishop Museum TR29 records Kauaʻi occurrence; HCRI records Conus lividus at Kauaʻi KARA3, KARA5, and KARA6; iNaturalist adds Princeville (2007) and Salt Pond (2017) records.
Mile Cone
Conus miles
Bishop Museum TR29 records Kauaʻi coastal-station occurrence; iNaturalist RG observations 137365047 (Waimea, 2022) and 337489089 (Poʻipū, 2025) have explicit island coordinates.
Abbreviated Cone
Conus abbreviatus
The Abbreviated Cone is a Hawaiian endemic with a low coronated spire and rows of brown shell spots. Kauaʻi evidence includes local photographic observations and preserved specimens. These records do not establish present living abundance.
Morelet's Cone
Conus moreleti
HCRI records Conus moreleti at Kauaʻi station KARA6; iNaturalist records include 283321615 (Kōloa Landing, 2025-05-21) and 35142647 (Lawai, 1999).
Oak Cone
Conus quercinus
Bishop Museum TR29 coastal survey records Conus quercinus in Kauaʻi station columns; iNaturalist observation 6862264 documents a 2017 shell near Waimea River mouth.
Rat Cone
Conus rattus
Bishop Museum TR29 records a Kauaʻi coastal-station occurrence; iNaturalist RG observations 320988248 (Poʻipū, 2025-10-14) and 35142500 (Lawai, observed 2003) have explicit island coordinates.
Dotted Periwinkle
Littoraria pintado
Bishop Museum Technical Report 29 visually confirms the species at one or more Kauai stations (Ka1-Ka4) in its present-study table.
Giant African Land Snail
Lissachatina fulica
Bishop Museum catalogue uses island code K for Kauai; multiple research-grade, alive-annotated Kauai observations corroborate persistence.
Neritona granosa
Neritona granosa
Explicit Kauai locality is independently supported: the 2008 Wainiha sheet and numerous other 2008 Kauai watershed sheets list Neritina granosa; the 2021 review confirms the modern accepted combination and native Hawaiian ecology. Mollusca
Neripteron vespertinum
Neripteron vespertinum
Explicit Kauai locality is independently supported: the 2008 Wainiha watershed sheet and additional 2008 Kauai watershed sheets list Neritina vespertina; the 2021 review confirms the modern accepted combination and native Hawaiian ecology.
Newcomb's Snail
Erinna newcombi
A tiny Kauaʻi endemic freshwater snail with a smooth black, nearly limpet-like shell and strongly reduced spire. Federal reviews document dated spring-fed stream observations, while recent population condition remains unresolved.
Carelia anceophila
Carelia anceophila
A historically documented Kauaʻi land snail in Amastridae, described from two dead shells collected along the Olokele trail. The plate reconstructs the adult type shell; living soft parts are undocumented. Listed as extinct in Bishop Museum
Carelia bicolor
Carelia bicolor
Historical Kauaʻi land snail in Amastridae, documented from northern coastal valleys and trails. The plate reconstructs the adult Hanakapiai shell in Cooke 1931 plate IV figure 2. Listed extinct in Bishop Museum’s dated 1997 assessment, wit
Carelia cochlea
Carelia cochlea
A Kauaʻi land snail documented from historical fossil-shell collections on northern coastal flats. The selected Kalihikai adult in Cooke’s plate VIII figure 12 has nine spiral ridges. Fossil recovery dates do not establish living occurrence
Carelia cumingiana
Carelia cumingiana
Historical Kauaʻi land snail in Amastridae. The plate reconstructs the complete typical-form adult shell in Cooke 1931 plate VI figure 2. Older Kauai and Koolau labels are retained; Lumahai is a proposed historical locality, not an exact sp
Carelia dolei
Carelia dolei
Kauaʻi endemic land snail in Amastridae, known from historical dead and fossil shells. The adult type has a narrow, tall shell; its broad Hanalei label does not establish an exact type station.
Carelia evelynae
Carelia evelynae
Kauaʻi endemic land snail in Amastridae, described from fossil deposits at Polihale and Kaaweiki. Its compact adult shell has seven whorls and a thickened lip; collection dates do not date the fossils.
Carelia glossema
Carelia glossema
Kauaʻi endemic land snail in Amastridae, historically collected alive in Olokele. Its narrow dark adult shell bears coarse vertical sculpture and tuberculate upper whorls; Makaweli is fragmentary dead-shell evidence.
Carelia hyattiana
Carelia hyattiana
Kauaʻi endemic land snail in Amastridae, represented by historical dead shells and Waipa fossils. The narrow adult in plate IX figure 8 has an unknown exact origin; figure 7 is juvenile.
Carelia kalalauensis
Carelia kalalauensis
An endemic Kauaʻi land snail with documented living colonies in 1925 and 1927, plus distinct dead and fossil-shell records. The adult reference is Cooke’s Kalalau type in plate III figure 11. Bishop Museum’s dated 1997 list includes the spe
Carelia knudseni
Carelia knudseni
An endemic Kauaʻi land snail known in Cooke’s account from a single dead, heavily worn shell. Plate XV figure 4 documents its tall form; the exact island locality and fresh color pattern are unresolved. Bishop Museum’s dated 1997 list inclu
Carelia lirata
Carelia lirata
An endemic Kauaʻi land snail documented by fossil shells recovered at Māhāʻulepū in 1930. The complete adult type in Cooke’s plate XIV figure 12 guides reconstruction. Fossil age and last living occurrence are unknown; Bishop Museum’s dated
Carelia lymani
Carelia lymani
An endemic Kauaʻi land snail known in Cooke’s account from one fossil shell of unknown locality. The plate XIV figure 5 specimen is explicitly not quite adult, so its final adult form is unresolved. Bishop Museum’s dated 1997 list includes
Carelia mirabilis
Carelia mirabilis
A Kauaʻi land snail described from fossil fragments collected at Māhāʻulepū in 1930. Its distinctive shell sculpture extends across the base. A whole adult shell is an explicitly qualified composite reconstruction; modern survival and a pri
Carelia necra
Carelia necra
A Kauaʻi land snail known from fossil-shell material at Hanamāʻulu flats. Cooke’s fully adult specimen survives as a body-whorl fragment, so a complete shell requires a qualified composite reconstruction. Bishop Museum’s dated 1997 list inc
Carelia olivacea
Carelia olivacea
An endemic Kauaʻi land snail recorded historically in northeastern ridge forests. The plate reconstructs Cooke’s complete typical adult shell in plate XIII figure 4; that particular specimen lacks an exact locality. Bishop Museum’s dated 19
Carelia paradoxa
Carelia paradoxa
An endemic Kauaʻi land snail documented from fossil deposits at Waipouli and historical dead shells in the Anahola range. The primary shell follows Cooke’s largest whole adult in plate XVII figure 2. Bishop Museum’s dated 1997 list includes
Carelia periscelis
Carelia periscelis
A historical Kauaʻi land snail in Amastridae, known from fragile dead shells from the Kaapoko branch of Hanalei Valley. Its distinctive peripheral keel is reconstructed from the adult type; restored completeness and inferred dark live color
Carelia pilsbryi
Carelia pilsbryi
A historical Kauaʻi land snail in Amastridae known in Cooke’s account only from fossil material near Kalihiwai and Kalihikai. The reconstruction follows his representative whole adult, plate II figure 1, while qualifying restored dark shell
Carelia tenebrosa
Carelia tenebrosa
A historical Kauaʻi land snail in Amastridae from the upper slopes and summit of Haupu. The shell reconstruction follows the adult type collected alive, with a nearly black last whorl and distinct spiral cords. Listed extinct in a dated 199
Carelia turricula
Carelia turricula
A historical Kauaʻi land snail in Amastridae, documented from Waioli–Waipa and neighboring ridges. The reconstruction follows a complete mature shell in Cooke’s plate X figure2, preserving its dark base and widely spaced spiral cords. Liste
Hawaiian mountain shrimp
Atyoida bisulcata
Atyoida bisulcata is a decapod crustacean in the family Atyidae. Published sources characterize its origin status as endemic Hawaiian. Published Kauaʻi evidence documents the species from Limahuli Stream. The cited evidence includes records
Hawaiian river prawn
Macrobrachium grandimanus
Macrobrachium grandimanus is a decapod crustacean in the family Palaemonidae. Published sources characterize its origin status as endemic Hawaiian. Published Kauaʻi evidence documents the species from Limahuli Stream. The cited evidence inc
Tahitian prawn
Macrobrachium lar
Macrobrachium lar is a decapod crustacean in the family Palaemonidae. Published sources characterize its origin status as introduced. Published Kauaʻi evidence documents the species from Limahuli Stream. The cited evidence includes records
Gammarid Amphipod
Gammarus sp.
Gammarid Amphipod. Scientific name: Gammarus sp.. Common names: Gammarid Amphipod. Family: Gammaridae
Kauaʻi cave amphipod
Spelaeorchestia koloana
Spelaeorchestia koloana is an amphipod crustacean in the family Talitridae. Published sources characterize its origin status as endemic to Kauaʻi. Published Kauaʻi evidence documents the species from Kōloa Basin cave habitat. Evidence types
Pacific Giant Centipede
Scolopendra subspinipes
Pacific Giant Centipede. Scientific name: Scolopendra subspinipes. Common names: Pacific Giant Centipede. Family: Scolopendridae
Freshwater Golden Clam
Corbicula fluminea
An introduced Asian freshwater clam also called the Asiatic Clam. Hawaiʻi agency and museum accounts document Kauaʻi occurrence; the different common names refer to the same retained Corbicula fluminea identity.
thin-shelled rock crab
Grapsus tenuicrustatus
Grapsus tenuicrustatus is a decapod crustacean in the family Grapsidae. Published Kauaʻi evidence documents the species from Kauaʻi coastal/intertidal habitat. Evidence types include island checklist. These records establish a documented Ka
