HELIX &. 39. 183 
975. H. transarata Mousson. 4 
« T. umbilicata, depresso-conica, irregulariter rugoso - vel 
plicato-striata, lutescens-alba (?. Spira regularis, obtuse conica; 
summo minuto, obtuso, sutura lineata, supra tenuiter margi- 
nata. Anfr. 5, mediocriter accrescentes, convexiuseuli, ultimus 
non descendens, filo tenui et acuto carinatus, subtus laevior, 
convexiusculo-planatus, ad carinam impressus, rapide in umbi- 
lieum  decidens. Apertura subobliqua, securiformis.  Perist. 
rectum, acutum (?); margine externo ad carinam subretracto; 
basali acuto; columellari subverticali, non reflexo. Umbilicus 
!, diametri aequans. — Diam. maj. 7, min. 6, alt. 5 mill.» (M.) 
Helia transarata Mouss. in Journ. Conch. XIII. 1865. p. 194. 
Habitat Lomma-Lomma ins. Viti (Gráffe). 
x* 
976. (605. solarium Quoy. (Coll. Nr. 396.) Nanina solarium (Tro- 
chomorpha) A?. 61. — Nova Hibernia. (Ll. 120.) 
971. (696. arcuata Pfr. — Luzon. (I. 120.) 
978. H, Prionacis Benson. | 
«H. testa umbilicata, conoideo-depressa, superne et inferne 
fortiter oblique plicata, plicis remotioribus, albidis, albido-cor- 
nea, superne hic illie maculis fuscis ornata; spira conoidea, 
sutura impressa, apice obtusiusculo; anfractibus 5, convexius- 
culis, angustis, ultüimo compresse carinato, subtus convexo; 
apertura late lunulata, securiformi; peristomate tenui, acuto; 
margine columellari expanso, superne dilatato. — Diam. maj. 
6, min. 5, axis 3 mill.» (B.) 
Helia Prionacis Bens. in Ann. and Mag. n. h. (Jun. 1864) 3d. 
ser. XIII. p. 493. 
Habitat prope Bredasdorp Promontorii Bonae Spei. 
* 
979. (97. sciadium Pífr. (Coll. Nr. 397.) Nova Seelandia. (IV. 112.) 
980. (699. oceanica Guill. 4 —  Taiti. (I. 120.) 
981. (699. alpha Pfr. — Charopa A?. 88. —  H. slipulata Reeve. — 
Nova Seelandia. (III. 1412.) 
982. (100. beta Pfr. (Col. Nr. 398.) Charopa A?. 88. — H. barba- 
tula Reeve. — Nova Seelandia. (Ill. 112.) 
983. H. macropleuris Benson. 4| 
« Testa subaperte umbilicata, attenuato-pyramidata, oblique 
minute arcuato-striata, superne costis remotis elevatis, arcuatis 
munita, decorticata albida, nitidula; spira pyramidali, superne 
attenuata, apice papillari, papilla laeviori, sutura carinato - mar- 
ginata; anfractibus 8 convexiusculis, ultimo non descendente, 
