ball: mollusca and brachiopoda. 335 



Polinices (Euspira) solutus Gould. 



Plate 8, figure 2. 



Natica soluta Gould, Proc. Boston, Soc. Nat. Hist., July, 1847, 2, p. 229 ; Expe- 

 dition Shells, 1850, atlas, tig. 257; Tryon, Man., 1886, 8, p. 39, pi. 9, fig. 71. 



Shell small, heavy, translucent white with an olivaceous pcriostracum, moder- 

 ately elevated spire, and five wliorls ; nucleus eroded, remaining whorls rounded 

 from the margin of the narrow, deep suture, to the umbilical regiou; surface 

 smooth, polished, with very fine, silky, incremental lines, and microscopic spiral 

 striae ; aperture semilunar, outer lip simple, body with a subsutural callus and a 

 thin layer connecting with the pillar over the body ; pillar lip thickened and 

 slightly reflected; base rounded, witli a very minute, umbilical perforation under 

 the reflected callus. Alt. of shell, 17.0; of last whorl, 15.5 ; of aperture, 11.0; 

 max. diam. 15.0 mm. 



Operculum brown, horny, of two whorls. 



U. S. S. " Albatross," station 4653, 17 miles N. 61° W. from Aguja Point, 

 Peru, in 536 fathoms, mud, bottom temperature 41°. 3 F. U. S. N. Mus. 

 110,567- Also at station 2791, on the southwest coast of Ciiile, in 667 fathoms, 

 mud, temperature 38°; and young specimens at stations 2781, 27S4, and 2785, 

 in 194 to 449 fathoms, mud, temperatures 47° to 51°. 9 ¥., from the vicinity of 

 Magellan Straits northward to Chile. 



This species was referred by Carpenter and Tryon to Euspira pallida Broderip 

 and Sowerby, but this ascription is absurd, since the latter species is without the 

 sutural channel and has a decidedly difl'ureut outline, besides being a very much 

 larger shell. 



Polinices (Euspira) crawfordianus Dall, n. sp. 



Plate 11, figure 7. 



Shell small, white, smooth, covered by a conspicuous, brownish pcriostracum ; 

 whorls about four, the nucleus eroded; suture distinct, deep; the whorls rather 

 full at the shoulder, giving a somewhat elongated aspect to the shell, rounded, 

 the last mucli the largest; sculi)turc of incremental lines ratlicr feeble and irreg- 

 ular, and, on the spire, numerous, not very regular, fine wrinkles radiating from 

 the suture and becoming obsolete near the periphery, but absent from the last 

 whorl; there are also a few faint, irregular, spiral markings, perhaps pathological; 

 aperture ovate, outer lip thiu, simple ; body with a thin, whitisii callus thicker on 

 the pillar, which is arcuate, slightly reflected and with a very narrow umbilical 

 chink open behind it; operculum dark brown, horny, with about two and one half 

 whorls. Height of shell, 15.0 ; of last whorl, 14.0 ; of aperture, 1 1.5 ; max. diam. 

 11.5 mm. 



U. S. S. " Albatross," station 3356, Gulf of Panama, in 546 fatiioms, mud, 

 bottom temperature 40°. 1 F. U. S. N. Mus. 123,044. Also at station 3407, 



