NO. 2288. NEW MOLLUSKS OF THE FAMILY TURRITIDAE—DALL. 27 



cord : aperture reflecting the colors of the exterior ; outer lip short, 

 sharp, arcuate; pillar and body smooth, canal very short, a little 

 recurved. Height of shell, 30.5; of last whorl, 16; diameter, 10. mm. 

 Cat. No. 266911, U.S.N.M. 



Range. — San Bartolome Bay, Lower California, Dr. Paul Bartsch. 



This elegant species appears to be a Crassisfira^ but lacks the fine 

 spiral striation and lilack color characteristic of the latter group. 



? CRASSISPIRA AMATHEA, new species. 



Plate 6, fig. 2. 



Shell solid, marbled with brown and white, the brown chiefly as a 

 broad dark peripheral band with a narrower band just behind the 

 canal; nucleus blunt, brown, of two smooth whorls, followed by 

 about six subsequent whorls, suture obscure, appressed, with a strong 

 whitish ridge in front of it behind a rather v/ide constricted f asciole ; 

 spiral sculpture of fine striae covering the whole surface ; axial sculp- 

 ture of (on the last whorl about a dozen) short ribs extending from 

 the fasciole to the canal and most prominent at the shoulder, with 

 three nodules on the basal par* of each rib; on the spire they are 

 more like nodules than ribs; aperture wide, outer lip thickish, with 

 a feeble varix behind it; anal sulcus distinct, shallow, with a large 

 subsutural callus ; imier lip with a moderate layer of enamel the an- 

 terior edge of which near the canal is raised, with a chink between 

 it and the siphonal fasciole ; canal wide, deep, very short, constricted, 

 with a well marked siphonal fasciole. Height of shell, 22; of last 

 whorl, 12 ; diameter, 8 mm. Cat. No. 56099, U.S.N.M. 



Range. — Purchased from a native at Acapulco, Mexico, by W. H. 

 Dall. 



The shell is polished, but this may be due to the manner in which 

 it has been cleaned by the seller. 



? CRASSISPIRA MARTINENSIS. new species. 



Plate 13, fig. 4. 



Shell brownish, with two smooth nuclear and seven subsequent 

 whorls; suture distinct, with a strongly nodulous ridge between it 

 and the anal fasciole which is retractively arcuately wrinkled; the 

 body is strongly sculj)tured with about a dozen rounded cords with 

 narrower interspaces, not swollen where they pass over (on the penul- 

 timate whorl 14) close rounded ribs which extend to the periphery 

 and are obsolete beyond it; aperture defective. Height, 18; of last 

 whorl, 12 ; diameter, 8 mm. Cat. No. 162669, U.S.N.M. 



Range. — Gulf of California at Cape San Martin. 



MONILIOPSIS GRIPPI, new species. 



Plate 8, fig. 2. 

 Shell slender with about eight (slightly decollate) whorls, livid 

 olivaceous with a pale peripheral band, lighter near the aperture; 



