Belongs within: Triphoroidea.
Cerithiopsis is a genus of marine gastropods with slender, closely beaded shells.
Characters (Oldroyd 1927): Shell more or less cylindrical and slender, closely tuberculate or beaded, never varicose nor umbilicate; spire tapering to abrupt but elongated point; whorls numerous, earliest very slender in proportion to rest; suture narrow, excavated; mouth small; canal extremely short, truncated and straight; operculum horny, ear-shaped, having an incomplete spire; nucleus nearly terminal, at inner base of mouth.
<==Cerithiopsis Forbes & Hanley 1850 [Cerithiopsini]BR05
|--C. (Cerithiopsis)O27
| |--*C. (C.) tubercularis (Montagu 1803) [=Murex tubercularis]BR17
| |--C. (C.) bakeri Bartsch 1917O27
| |--C. (C.) berryi Bartsch 1911O27
| |--C. (C.) carpenteri Bartsch 1911O27
| |--C. (C.) cesta Bartsch 1911O27
| |--C. (C.) charlottensis Bartsch 1917O27
| |--C. (C.) diomedae Bartsch 1911O27
| |--C. (C.) grippi Bartsch 1917O27
| |--C. (C.) montereyensis Bartsch 1911O27
| |--C. (C.) oxys Bartsch 1911O27
| |--C. (C.) paramoea Bartsch 1911O27
| |--C. (C.) pedroana Bartsch 1907O27
| |--C. (C.) pulvis (Issel 1869) [=Cerithium (C.) pulvis]BD86
| `--C. (C.) stejnegeri Dall 1884O27
| |--C. s. stejnegeriO27
| `--C. s. dina Bartsch 1911O27
`--C. (Cerithiopsida Bartsch 1911)O27
|--C. (C.) antemunda Bartsch 1911O27
|--C. (C.) diegensis Bartsch 1911O27
|--C. (C.) gloriosa Bartsch 1911O27
`--C. (C.) rowelli Bartsch 1911O27
Cerithiopsis incertae sedis:
C. academicorum Rolán & Espinosa 1995BC01
C. aimen Rolán & Espinosa 1995BC01
C. angasi Semper 1874H09
C. aperta [=Recluzia aperta]J64
C. assimilataC64
C. atkinsoniTW76
C. barleiB91
C. bermudensis Verrill & Bush 1900W62
C. bicolor Adams 1850 [incl. C. binoda Usticke 1969]BC01
C. calvertensis Martin 1904P12
C. contrapupa Usticke 1969BC01
C. croceaTW76
C. dominiquezi Rolán & Espinosa 1995BC01
C. fortior Carpenter 1864C64
C. fuscoflavus Rolán & Espinosa 1995BC01
C. iota [=Cerithium iota]W62
C. latum (Adams 1850) [incl. C. cruzana Usticke 1959]BC01
C. maiquetiensis Weisbord 1962W62
C. metaxaN79
C. minimaB91
C. paucispiralis Rolán & Fernandes 1989BC01
C. portoi Rolán & Espinosa 1995BC01
C. prieguei Rolán & Espinosa 1995BC01
C. pseudomovilla Rolán & Espinosa 1995BC01
C. tela Weisbord 1962W62
C. tuberculataC64
C. tuberculoides [incl. Triforis infrequens]C64
C. vinca Olsson & Harbison 1953W62
*Type species of generic name indicated
References
[B91] Bandel, K. 1991. Über triassische “Loxonematoidea” und ihre Beziehungen zu rezenten und paläozoischen Schnecken. Paläontologische Zeitschrift 65 (3–4): 239–268.
[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.
[BC01] Boyko, C. B., & J. R. Cordeiro. 2001. Catalog of Recent type specimens in the Division of Invertebrate Zoology, American Museum of Natural History. V. Mollusca, part 2 (class Gastropoda [exclusive of Opisthobranchia and Pulmonata], with supplements to Gastropoda [Opisthobranchia], and Bivalvia). Bulletin of the American Museum of Natural History 262: 1–170.
[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.
[H09] Hedley, C. 1909. The Marine Fauna of Queensland: Address by the President of Section D. Australasian Association for the Advancement of Science: Brisbane.
[J64] Jeffreys, J. G. 1864. Report of the committee appointed for exploring the coasts of Shetland by means of the dredge. Report of the British Association for the Advancement of Science 33: 70–81.
[N79] Norman, A. M. 1879. The Mollusca of the fiords near Bergen, Norway. Journal of Conchology 2: 8–77.
[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 2. Stanford University Press: Stanford University (California).
[P12] Petuch, E. J. 2012. Miocene asteroid impacts: proposed effects on the biogeography and extinction patterns of eastern North American gastropods. In: Talent, J. A. (ed.) Earth and Life: Global biodiversity, extinction intervals and biogeographic perturbations through time pp. 967–981. Springer.
[TW76] Tenison Woods, J. E. 1876. Description of new Tasmanian shells. Papers and Proceedings of the Royal Society of Tasmania 1875: 134–162.
[W62] Weisbord, N. E. 1962. Late Cenozoic gastropods from northern Venezuela. Bulletins of American Paleontology 62: 7–672.