1920.] NATURAL SCIENCES OF PHILADELPHIA. 301 



color ascribed to T. swainsom by Deshayes and Reeve is that of 

 faded beach shells. Twenty specimens examined, in coll. A. N. S. 

 P. and M. C. Z. 



Terebra sulcata Pease (Amer. Journ. Conch. V, p. 67, from Oahu) 

 appears to be merely a small form of swainsoni, with stronger spiral 

 sculptm'e, approaching that of T. rosacea somewhat. The speci- 

 mens seen are No. 49967 M. C. Z., agreeing exactly with 117036 

 P. A. N. S., from 6-8 fathoms, off Honolulu. D. B. Langford. 



Pease stated that he had 32 species of Terebra from the Hawaiian 

 Islands. The following species are before me, in addition to several 

 not determined, 



T. chlorata Lam. Midway Island. 



T. crenulata fimbriaia Lam. Kahuku, Oahu. 



T. gouldii Desh. Off Honolulu. 



T. inconstans Hinds. Off Diamond Head, etc., Oahu; Molokai; 

 Kauai, 



T. inconstans confusa Smith. Off Halawa, Molokai, 



T. lauta Pse. Off Honolulu ; Mokapu Point, Oahu. 



T. mtida Hinds. ^ Off Honolulu. 



T.. nodularis Desh.' Honolulu Harbor^ Kaneohe Bay. 



T. pertusa Born. Off Honolulu. 



T. ■pro'pinqua Pse. Off Honolulu and Waikiki. 



T. rosacea Pse. Off Honolulu. 



T. suffusa Pse. Off Honolulu. 



T. swainsoni Desh. Off Honolulu. 



T. venosa Hinds. Off Honolulu; Kauai; Maui. 



T. verreauxi Desh. {T. strigilata of Born and Lamarck, not of 

 Linne). Off Honolulu; Haena, Kauai, 



Partial Key to Hawaiian Terebra. 



1. No groove defining a presutural band; smooth ribbed, without 



spiral sculpture 2 



A presutural band defined by a groove or series of pits, at least 

 in the upper half of the shell 5 



2. Aperture dilated below; no canal, the emarginate base broad. 



T. inconstans Hinds. 

 Aperture not dilated below, the base narrow, somewhat chan- 

 nelled 3 



3. A series of dark spots on or below a whitish band at the suture. 



T. verreauxi Desh. 



^The specimens appear to be intermediate between nilida Hinds and plicatella 

 Desh., possibly referable to the latter. 



^This is quite distinct from T. tcxtilis Hinds, with which Tryon unites it. 



