152 OPEAS, COMORO IS., ETC. 



Comoro Is.: Grand Comoro (Humblot) . 



Stenogyra (Opeas) apiculum MORELET, Journ. de Conehyl. 

 Oct. 1885, p. 292, pi. 14, f. 10. 



"A small shell of the same group as the preceding 

 (S. longula), of which it reproduces almost exactly the char- 

 acters. It is equally subulate, with the whorls of the spire 

 flattened, eight in number, instead of nine as in its con- 

 gener. Its aperture is relatively not so long, and its 

 columella less twisted. Moreover, it is engraved with strong 

 strise which assume the appearance of a costulation on the 

 earlier whorls of the spire. It is impossible to confound it 

 with the young of the 8. longula. (Morelet). 



The shell is without trace of umbilical perforation, and is 

 olivaceous-yellow rather than ' ' corneorufa. ' ' The apex is 

 obtuse, side-slopes just perceptibly convex. The first 2% 

 whorls are smooth, then striae set in, which become coarser, 

 so that the intermediate whorls are irregularly costulate. 

 The last whorl or two are rather finely, irregularly striate. 

 All the whorls but the first one are decidedly flattened. The 

 piriform aperture is quite oblique, the thin outer lip is arched 

 forward a little near the upper insertion. The columella is 

 oblique, its lower, callous portion being very obliquely ex- 

 cised below. The reflexed edge is thin and closely adherent. 

 The largest specimen I have seen measures, length 12.5, diam. 

 3.7, aperture 3.9 mm., and has 8 whorls. 



28. 0. LONGULUM (Morelet) . PI. 15, fig. 80. 



"Shell subulately turrited, rather thin, irregularly hair- 

 striate, corneus brown, a little shining. Spire elongate, apex 

 rather acute. Suture impressed. Whorls 9 planulate, the 

 last hardly exceeding one-third of the entire length of the 

 shell. Columella twisted, receding, not truncate. Aperture 

 elongate, not very wide, base subeffuse; peristome thin. 

 Length 19 diam. 5 mm." (Morelet). 



Comoro Is. : Grand Comoro. (Humblot.) 



Stenogyra (Opeas) longula MORELET, Journ. de Conchyl. 

 Oct. 1885, p. 292, pi. 14, f. 9. 



"This Stenogyra, with a spire composed of nine depressed 



