NO. 2288. NEW MOLLUSKS OF THE FAMILY TURRITIDAE—DALL. 35 



Range. — Station 3194, off Esteros Bay, California, in 92 fatlioms, 

 sand, temperature 45.9° F. U. S. Bureau of Fisheries. 



ANTIPLANES ABARBAREA, new species. 



Plate 9. fig. 5. 



Shell "whitish, acute, with one globular nuclear and six and a half 

 subsequent, well-rounded whorls; suture distinct, not appressed; 

 spiral sculpture of faint obscure grooves with w^ider interspaces over 

 the whole spire but obsolete on the last whorl, and a series of faint 

 irregular peripheral nodulosities on the upper part of the spire ; axial 

 sculpture of rather coarse, irregular incremental lines, retractively 

 arcuate in front of the suture, though there is no distinct fasciole;, 

 aperture elongate, anal sulcus close to the suture, rather deep ; outer- 

 lip thin, smooth inside; inner lip erased; pillar straight, smooth, at- 

 tenuated in front; canal short, wide, nearly straight. Height of 

 shell, 21.5; of last whorl, 13.5; diameter, 8 mm. Cat. No. 224393, 

 U.S.N.M. 



Range. — Station 2954, off Santa Eosa Island, California, in 55 

 fathoms, shelly bottom, temperature 55.4° F. U. S. Bureau of 

 Fisheries. 



This specimen, though complete, has lost its periostracum and the- 

 nucleus is slightly eroded. 



ANTIPLANES BRISEIS. new species. 



Plate 22, fig. 1. 



Shell elongate, acute, white, covered with a very pale olivaceous 

 periostracum, with a blunt swollen nucleus of about a whorl and a half 

 (eroded) and eight subsequent rather fiattish whorls; suture obscure, 

 appressed ; spiral sculpture of one or two feeble fiattish cords between 

 the periphery and the succeeding suture on the spire, and on the 

 last whorl about twice as many more or less obsolete; axial sculpture 

 of rather prominent, deeply arcuate incremental lines; anal fasciole 

 wide, not impressed, the deepest part of the sulcus near the periph- 

 ery; aperture narrow, outer lip thin, sharp, much produced; inner 

 lip and pillar erased, the latter short, straight, obliquely attenuated 

 in fi'ont ; canal distinct, produced, straight. Height of shell, 18 ; oi 

 last whorl, 10 ; diameter, 5 mm. Cat. No. 212329, U.S.N.M. 



^an^e.— Station 3179, off Drakes Bay, California, in 30 fathoms^ 

 mud, temperature 50° F. U. S. Bureau of Fisheries. 



ANTIPLANES HYPERIA, new species. 



Plate 9, fig. 6. 



Shell with more than six hardly rounded whorls (decollate), white, 

 with a dark olive periostracum, the base white ; suture appressed, dis- 

 tinct, the whorl in front of it constricted; spiral sculpture of (on 

 the last whorl) a sharp thread or low keel above the periphery, two 



