308 PROCEEDINGS OF THE ACADEMY OF [NoV., 



Terebra medipacifica n. sp. PI. XII, flgs. 8, 9, 10. 



Shell rather slender with slightly convex lateral outlines; a white 

 band below the suture, followed by a broad band of brown streaks 

 and blotches on a white ground, extending to the periphery. A 

 second white band below the periphery and a narrow band of brown 

 markings just above the narrow, rather shallow furrow between 

 base and siphonal fasciole; apical whorls purplish. Sculpture of 

 fine, forwardly curved axial ribs, about 35 on the last whorl. Both 

 ribs and intervals are smooth, there being no spiral sculpture. There 

 are about 43^ smooth embryonic whorls, the last bulging, wider than 

 the following sculptured whorl: 83^2 sculptured whorls. Suture 

 is regularly crenulated by the ends of the ribs. The aperture is 

 narrow, channelled above by the retraction of the lip near its inser- 

 tion. Anteriorly it is broadly notched. Columella smooth. There 

 is no raised inner lip, though the parietal ca'lus is rather thick. 



Length 18.8, diameter 4.4, aperture 5.4 mm. 



Length 20, diameter 5, aperture 6 mm. 



Off Honolulu, 6 to 8 fathoms. D. B. Langford. 



It is much more finely ribbed than T. inconsfans, with a differently 

 shaped aperture. T. bipartita Desh. (Proc. Zool. Soc. London, 

 1859, p. 284), from the Isles Sandwich, requires comparison, but 

 the description does not agree fully, and the species has not been 

 figured. 



It is one of the species which Reeve and Tryon would have placed 

 under T. hastata. 



Terebra medipacifica melior n. subsp. PI. XII, fig. 11. 



A much larger form of this species was taken in Kaneohe Bay, 

 Oahu. The brown markings are much reduced, but not more than 

 in some Honolulu shells. There are 38 ribs on the last whorl. 



Length 28, diameter 7, length aperture 8 mm., 10 post -embry- 

 onic whorls. 



Terebra spaldingi n. sp. PI. XII, flg. 13. 



Shell narrow, poHshed; whitish, the intercostal intervals fiesh 

 colored; three faint gray spiral lines on the last whorl, the upper 

 one visible on the spire. 



Sculpture of smooth, rounded axial ribs, about 22 on the last or 

 penult whorls, a little prominent just below the suture, interrupted 

 by a well impressed presutural groove; intervals smooth. Last 

 whorl with a spiral ridge bounding a narrow basal furrow, which 

 extends also above the narrowly reflected basal margin. The aper- 



