Hastulopsis Oyama, 1961

Fedosov, Alexander E, Malcolm, Gavin, Terryn, Yves, Gorson, Juliette, Modica, Maria Vittoria, Holford, Mandë & Puillandre, Nicolas, 2019, Phylogenetic classification of the family Terebridae (Neogastropoda: Conoidea), Journal of Molluscan Studies The Malacological Society of London 85 (4), pp. 359-388 : 21

Genus Hastulopsis Oyama, 1961

( Fig. 10B )

Type species: Terebra melanacme E. A. Smith, 1873 ; OD.

Diagnosis: Shell small to medium-sized (to 60 mm), shiny, faintly axially ribbed, with numerous fine spiral incisions. Subsutural band generally not spirally decorated, bordered by relatively deep incision ( Terryn, 2007).

Distribution: Indian and western Pacific Oceans.

Remarks: The genus comprises two groups of shallow-water species, one found from the eastern coast of Africa to the Arabian Gulf and another in waters of mainland Japan to Australia. Similar, but deeper-water species are found in the genus Maculauger n. gen., most of which can be recognized by having a row of large spots on the periphery. The species of Myurella have much stronger and more distinct sculpture features, and generally a brown basal area.

Included species:

Hastulopsis baliensis Terryn & Dekker, 20174 ;

H. blanda (Deshayes, 1859) 4;

H. cebuensis Gargiulo, 20144 ;

H. elialae (Aubry, 1994) 4;

H. gotoensis (E. A. Smith, 1879) 4;

H. loisae (E. A. Smith, 1903) 4;

H. maestratii Terryn & Rosado, 20114 ;

H. marmorata (Deshayes, 1859) 4;

H. masirahensis Terryn & Rosado, 20164 ;

H. melanacme (E. A. Smith, 1873) 4;

H. mirbatensis Terryn & Rosado, 20164 ;

H. suspensa (E. A. Smith, 1904) 4;

H. whiteheadae (Aubry & Marquet, 1995) 4.

Figures

Figure 10. Genera defined solely by shell morphology. A. Terebra bathyrhaphe lectotype, NHMUK 1873.8.6.10/1, Gulf of Yedo, 35◦35'N, 139◦48'E, 6–25 fms (= 11–46 m), 24.8 mm. B. Hastulopsis melanachme lectotype, NMHUK 1873.8.6.11/1, Cape Sima, Japan, 18 fms (= 33 m), 17.8 mm. C. Terebra bifrons holotype, NHMUK 1968237, Japan, 51.0 mm. D. Gradaterebra scalariformis, SAM D-110176, Newland Head, S Australia, 20 fms (= 37 m), 12.1 mm. E. Terebra circumcincta holotype, NHMUK 1978150, Red Sea (erroneous?), 38.0 mm. F. Microtrypetes iola holotype, ANSP 155289, Mazatlan, Mexico, 20 fms (= 37 m), 14.0 mm.