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.