279 



only 11 whorls and 4'3 mm. long, or in 1 with 17 whorls- 

 and 7'9 mm. long. 



LncaUty. — Type from 55 fathoms off Cape Borda, with 

 56 others in good coiidition and about 90 poor ; also in 62 

 fathoms, 2 poor: also off Beachport in 40 fathoms, 2 good ;- 

 in 110 fathoms, 4 good and 5 moderate; in 300 fathoms, 3 

 poor ; off Cape Jaffa in 130 fathoms, 2 moderate ; in 300 

 fathoms, 1 poor. Its habitat would therefore appear to be- 

 in 50 fathoms, extending up to 40 and down to 110. 



Ohs. — Although this shell is dextral it has been placed in 

 the genus Triphora, because it has the three apertures in 

 its body-whorl. But for this it would have been called a 

 Cerithiopsis, and if immature it would have been placed in 

 this genus. In the Bull. Mus. Compar. Zool. of Harvard 

 Coll., vol. xviii., '"Blake" Dredging, xxix., Report on the- 

 Mollusca, 1889, part 2, p. 242, W. H. Dall writes : —"There- 

 are probably," in Triforis, ''some dextral forms, though such 

 are apt to be referred to Cerithiopsis." This suggestion is^ 

 the justification for calling my new species a Triphora. Sub- 

 sequent examination of the animal may settle its final gen- 

 eric location. 



Triphora epallaxa, n. sp. Pj. xxii., fig. 1. 



Sliell dextral, elongate-conical in the earlier half, cylin- 

 drical in the later. Protoconch absent. Suture indistinct, 

 minutely appressed. Whorls 18, flat, with two spiral rows 

 of tubercles, axially alternating, much larger in the lower 

 row ; with a faint spiral cord joining the tubercles. The last 

 whorl has its aperture round, projecting as a free tube, with 

 a thin expanded border, also two other tubes — one standing 

 out from the centre of the base, the other immediately below 

 the suture of the penultimate whorl. The base is flatly con- 

 vex and is slightly margined by the lower row of tubercles, 

 which then passes between the two tubes and fades out on 

 the dorsum of the projecting triimpet-shaped apertural tube. 

 The upper row of tubercles ends at the base of posterior tube. 



Dim. — Length, 7'9 mm.; width, 1*7 mm. ; including the- 

 projecting aperture, 2 mm. 



Locality. — 130 fathoms off Cape Jaffa, 2 dead. 



JJia gnosis. — It resembles T. deccia in being dextral, in 

 its general shape, and in having three well-formed tubes, but 

 is plainly distinguished by the two rows of alternating 

 tubercles. 



Triphora subula, n. sp. PI. xxiii., figs. 5 and 6. 



Shell sinistral, elongate-subulate-pyramidal. Protoconch 

 of 3i turns ; the first has two high, narrow, smooth, rounded 



