Belongs within: Rapaninae.
Thais, dog winkles, is a genus of predatory gastropods found on rocky shores and mangroves. Members of the genus have a very low-spired, basally unconstricted shell with a very broad aperture and an outer lip extended to form a curving channel at the adapical end of the aperture.
<==Thais Röding 1798BR05
|--T. (Thais)W94
| |--*T. (T.) fucus (Gmelin 1791) [=Murex fucus, T. lena Röding 1798]BR17
| `--T. (T.) neritoideaW94
|--T. (Dicathais Iredale 1936)W94
| |--T. (*D.) orbita (Gmelin 1791)W94, RA75 (see below for synonymy)
| `--‘Dicathais’ baileyana Tenison Woods 1881WG71
`--T. (Mancinella Link 1807)W94
|--T. (*M.) mancinella (Linnaeus 1758)W94, RA75 (see below for synonymy)
|--T. (M.) ‘aculeata’ (Deshayes & Milne Edwards 1844) (see below for synonymy)W94
|--T. (M.) alouina Röding 1798W94 (see below for synonymy)
|--T. (M.) ambustulatus Hedley 1912W94
|--T. (M.) armigera (Link 1807) [incl. T. affinis Reeve 1846]W94
|--T. (M.) bufo Lamarck 1822WG71, M54, WG71
|--T. (M.) echinata (Blainville 1832)W94 [=Purpura echinataH09]
|--T. (M.) kieneri (Deshayes 1844)W94
`--T. (M.) tuberosa Röding 1798BW09, WG71 (see below for synonymy)
Thais incertae sedis:
T. ‘alveolata’ (Reeve 1846) [=Purpura alveolata non Kiener 1836]F27b
T. biserialis (Blainville 1832)S11 [=T. haemastoma biserialisEO64; incl. T. haematura (Valenciennes 1846)EO65]
T. bitubercularis (Lamarck 1822) [=Purpura bitubercularis]H09
T. carinifera (Lamarck 1822)BD86
T. clavigeraZLK11
T. columellarisEO64
T. coronataPB27
T. deltoidea (Lamarck 1822)IZ77
T. haemastoma (Linné 1758)BD12
|--T. h. haemastomaIZ77
`--T. h. floridana (Conrad 1837)IZ77
T. hippocastanea (Linnaeus 1758) [=Murex hippocastanea]H09
T. lapillus (Linnaeus 1758)W78
T. luteostomaZLK11
‘Nerita’ nodosa Linnaeus 1758RA75
T. planospiraSF77
T. pseudamygdala (Hedley 1903) [=Purpura pseudamygdala]H09
T. rustica (Lamarck 1822) [=Purpura rustica]H09
T. savignyi (Deshayes 1844)BD12
T. speciosaEO64
T. triangularisEO64
Thais (*Dicathais) orbita (Gmelin 1791)W94, RA75 [=Buccinum orbitaRA75, Neothais (*D.) orbitaP61; incl. Dicathais aegrota Reeve 1846WG71, D. scalaris Menke 1829W94, Neothais (D.) scalaris P61, Thais scalarisF27a, Buccinum succinctum Lamarck 1816H09, W94, T. succinctaF27a, Dicathais textilosa Lamarck 1822WG71, W94, T. vector Thornley 1952W94]
Thais (Mancinella) ‘aculeata’ (Deshayes & Milne Edwards 1844) non Mancinella aculeata Link 1807 [incl. T. hippocastanum Lamarck 1822, T. pseudohippocastanum Dautzenberg 1929]W94
Thais (Mancinella) alouina Röding 1798W94 [incl. Mancinella aculeata Link 1807RA75, W94, Purpura gemmulata Lamarck 1816H09, W94, Thais gemmulataH09, T. glacialis Rödong 1798W94]
Thais (*Mancinella) mancinella (Linnaeus 1758)W94, RA75 [=Murex mancinellaRA75, Drupa mancinellaH09, Purpura mancinellaB79; incl. Drupa carnus Bolten 1798H08, Purpura martiniana Anton 1839H08, Ricinula spectrum Reeve 1846H08]
Thais (Mancinella) tuberosa Röding 1798BW09, WG71 [incl. T. castaneum Röding 1798W94, T. pica var. major Couturier 1907W94, T. pica Blainville 1832WG71, T. trapa Röding 1798W94]
*Type species of generic name indicated
References
[BD12] Bandel, K., & D. T. Dockery III. 2012. Protoconch characters of Late Cretaceous Latrogastropoda (Neogastropoda and Neomesogastropoda) as an aid in the reconstruction of the phylogeny of the Neogastropoda. Freiberger Forschungshefte C542 (psf 20): 93–128.
[BD86] Barash, A., & Z. Danin. 1986. Further additions to the knowledge of Indo-Pacific Mollusca in the Mediterranean Sea (Lessepsian migrants). Spixiana 9 (2): 117–141.
[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1-2): 1–397.
[BR17] Bouchet, P., J.-P. Rocroi, B. Hausdorf, A. Kaim, Y. Kano, A. Nützel, P. Parkhaev, M. Schrödl & E. E. Strong. 2017. Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia 61 (1–2): 1–526.
[B79] Brazier, J. 1879. List of marine shells collected on Fitzroy Island, north coast of Australia; with notes on their geographical range. Journal of Conchology 2: 186–199.
[BW09] Bryce, C., & C. Whisson. 2009. The macromolluscs of Mermaid (Rowley Shoals), Scott and Seringapatam Reefs, Western Australia. Records of the Western Australian Museum Supplement 77: 177–208.
[EO64] Emerson, W. K., & W. E. Old Jr. 1964. Additional records from Cocos Island. Nautilus 77 (3): 90–92.
[EO65] Emerson, W. K., & W. E. Old Jr. 1965. New molluscan records for the Galapagos Islands. Nautilus 78 (4): 116–120.
[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.
[F27b] Finlay, H. J. 1927b. New specific names for austral Mollusca. Transactions and Proceedings of the New Zealand Institute 57: 488–533.
[H08] Hedley, C. 1908. Studies on Australian Mollusca. Part X. Proceedings of the Linnean Society of New South Wales 33: 456–489, pls 7–10.
[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.
[IZ77] Ingham, R. E., & J. A. Zischke. 1977. Prey preferences of carnivorous intertidal snails in the Florida Keys. Veliger 20 (1): 49–51.
[M54] Macpherson, J. H. 1954. Molluscs (sea shells and snails). In: Willis, J. M. (ed.) The Archipelago of the Recherche pp. 55–63. Australian Geographical Society: Melbourne.
[PB27] Pilsbry, H. A., & J. Bequaert. 1927. The aquatic mollusks of the Belgian Congo, with a geographical and ecological account of Congo malacology. Bulletin of the American Museum of Natural History 53 (2): 69–602, pls 10–77.
[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.
[RA75] Radwin, G. E., & A. D’Attilio. 1975. A catalogue of muricacean generic taxa. Transactions of the San Diego Society of Natural History 17 (20): 279–292.
[S11] Simone, L. R. L. 2011. Phylogeny of the Caenogastropoda (Mollusca), based on comparative morphology. Arquivos de Zoologia 42 (4): 161–323.
[SF77] Smith, A. G., & A. J. Ferreira. 1977. Chiton fauna of the Galápagos Islands. Veliger 20 (2): 82–97.
[W78] West, D. L. 1978. Reproductive biology of Colus stimpsoni (Prosobranchia: Buccinidae). I. Male genital system. Veliger 20 (3): 266–273.
[W94] Wilson, B. 1994. Australian Marine Shells vol. 2. Prosobranch Gastropods. Part Two (Neogastropods). Odyssey Publishing: Kallaroo (Western Australia).
[WG71] Wilson, B. R., & K. Gillett. 1971. Australian Shells: illustrating and describing 600 species of marine gastropods found in Australian waters. A. H. & A. W. Reed: Sydney.
[ZLK11] Zou, S., Q. Li & L. Kong. 2011. Additional gene data and increased sampling give new insights into the phylogenetic relationships of Neogastropoda, within the caenogastropod phylogenetic framework. Molecular Phylogenetics and Evolution 61: 425–435.