PLEUROTOMID^. 185 



the texture and sculpture of the surface from Bela and Daphnella, 

 P. linearis, Blainv. (Iviii, 26). 



ZAFRA, A. Adams. Acumhiately oval, tumid in the middle ; 

 whorls longitudinall}' plicate, the last constricted at the base ; 

 aperture linear; inner lip effuse, its margin free; outer lip acute, 

 subsinuate behind, subinflected in the middle. P. Pupoidea, 

 H. Ad. (Iviii, 28 '. 



DAPHNELLA, Hiuds. Shell fusiform, thin, fragile, usually 

 striated ; aperture elongated oval, canal very short. Small and 

 elegant shells of slight thickness, distinguished from Defrancia 

 by their elongated body-whorl, tenuity and sculpture. No 

 operculum. P. ornata, Hinds (Iviii, 29). 



MiTROMORPHA, A. Ad. Shell small, elongatel}^ fusiform ; whorls 

 flattened, with revolving lirse, and sometimes longitudinally 

 plicate. Aperture narrow ; columella straight, slightly trans- 

 versely Urate ; lip acute, smooth within, scarcely sinuated pos- 

 teriori}'. It is a Mitriform Daphnella, of small size, with lirate 

 whorls. Distr. — California, Japan. M. gracilis, Carp. ( Iviii, 30). 



ciTHARA, Schum. (Mangelia, Reeve [not Leach \ Otocheilus, 

 Conr. Cytharella, Monts.) Fusiform, polished, longitudinally 

 ribbed ; aperture linear, truncated in front, slightly notched 

 behind ; outer lip margined, denticulated within ; inner lip 

 frequently finely striated. The animal has the mantle-margin 

 slightl}' dilated on the right side. No operculum. Over 50 

 species occur at the Philippine Islands. P. Stromboides, Reeve 

 (Iviii, 31). 



CYTHAROPSis, A. Ad. Differs from Cithara in having a sub- 

 produced recurved canal and cancellated surface. C. cancellata, 

 A. Ad. Japan. 



GLYPHOSTOMA, Gabb. Like Cithara, having numerous colu- 

 mellar plaits in adult specimens, but with a lengthened canal 

 and deep narrow posterior lip-sinus. P. dentifera, Gabb Uviii, 

 32). A number of recent exotic species have been referred to 

 this group. 



MANGELIA, Leach. (Bellaspira, Conr.) Fusiform, mostly longi- 

 tudinally ribbed ; spire elongated, turriculated, acuminated ; 

 canal short, more or less truncated ; columella smooth ; sinus 

 near the suture. No operculum. P. ponderosa, Reeve (Iviii, 33). 



TYPHLOMANGELiA, M. Sars. Narrow and elongate, spire pro- 

 duced conic, whorls many, nodosely angulate in the middle, 

 aperture narrow, with distinct sinus, the outer lip simple, arcuate 

 and inflexed in the middle. Operculum pyriform. Animal 

 without eyes. P. nivalis, Lov. (Iviii, 34). 



spiROTROPis, Sars. Shell elongated, turreted, spire produced, 

 the obtuse apex mammilliform, whorls numerous, carinated in the 

 middle, aperture narrow, oblique, with a short canal, sinus deep, 



13 



