N0.22S8. ]\fEW MOLLVSKS OF THE FAMILY TURRITIDAE—DALL. '21 

 PSEUDOMELATOMA PENICILLATA Carpenter. 



Plate 22, fig. 3. 

 Drillia peniciUata Carpenter, Journ. de Concliji., ser. 3, vol. 12, p. 146, 

 April, 1865. 



The poor condition of Carpenter's imfigured type specimen led 

 to the belief that it was best to figure a perfect if somewhat imma- 

 ture example. The name has been variously applied, especially to 

 forms of MoniUopsis, in ignorance of the true character of the 

 species. 



Bange. — Cerros Island to Gulf of California. 



CRASSISPIRA ERIGONE, new species. 



Plate 7, fig. 8. 



Shell solid, biconic, acute, olive brown with a purplish aperture; 

 nucleus with two whorls, the first minute, smooth, rounded, the 

 second with a peripheral keel, followed by eight sculptured whorls; 

 suture appressed, obscure, behind a strongly constricted anal fasciole 

 sculptured with almost microscopic spiral striae ; other spiral sculp- 

 ture of small obsolete threads covering the whole surface in front of 

 the fasciole and three or four cords on the base of the last whorl 

 widely separated and conspicuously nodulous where they cross the 

 ribs; there are also 10 or more closer cords on the canal; axial 

 sculpture of (on the spire about a dozen) short narrow ribs, very 

 prominent and almost angular in front of the fasciole and on the 

 last whorl extending nearly to the canal, with wider interspaces 

 and not nodulous behind the base; the incremental lines are very 

 fine and minutely crenulate the fine spiral sculpture in places; 

 aperture narrow, anal sulcus short, rounded, with a strong subsutural 

 callus; outer lip thin, smooth inside, moderately arcuate, with a 

 hump-like varix behind it: inner lip and straight pillar with a thin 

 layer of enamel, raised anteriorly at the edge; canal short, not deep, 

 hardly differentiated from the aperture. Height of shell, 20; of 

 last whorl, 12.5 ; diameter, 9 mm. Cat. No. 212368 U.S.N.M. 



Range. — Station 2798, in Panama Bay, in 18 fathoms; U. S. 

 Bureau of Fisheries. 



CRASSISPIRA EURYNOME, new species. 



Plate 7, fig. 5. 

 Shell small, slender, acute, dark brown with a whitish peripheral 

 and a less obvious basal band; nucleus blunt, polished, reddish 

 brown, of two whorls; subsequent whorls six, the anal fasciole on 

 the sjjire depressed, very minutely spirally striated with a single 

 fine thread near the posterior edge which is appressed at the suture ; 

 other spiral sculpture of fine striae and three stronger threads with 



