272 



sutural margin, nearly vanishing at the periphery of the 

 body- whorl. Four spiral equidistant narrow cords on the 

 spire whorls ; seventeen on the body-whorl ; the front six be- 

 low the periphery being the largest. Interstices with four 

 to seven slightly crinkled threadlets. 



Inside the aperture, at the anterior end of the colum- 

 ella, just above the canal, are two spiral threads, very dis- 

 tinct in broken shells. 



The colour in the spire, from the shoulder to the lower 

 suture, is a beautiful pinkish-salmon tint, fading towards 

 the summits of the costae. On the body-whorl this colour- 

 ation ceases abruptly at the periphery, with a spiral line of 

 small deep-brown articulated spots, which similarly orna- 

 ment all the cords on the base. Short, wavy axial reddish- 

 t)rown lines and flames crowd along the margined suture ; 

 and axial zig-zag dark-brown lines, rather more numerous 

 than the costae, cross the broad band on the body- whorl. 



Dim. — Length, 41 mm. ; breadth, 19 mm. ; length of 

 body-whorl, 29 mm. Another specimen, if whole, would be 

 '60 mm. long and 28 mm. broad. 



Locality. — St. Francis Island, 16 dead shells and "frag- 

 ments. No living or perfect example was obtained. It must 

 be a large and beautiful shell. The two columellar plaits 

 suggest Peristernia, but I have placed it provisionally in 

 'ijominella. 



Typhis bivaricata, n. sp. PI. xxi., tigs. 1 and 2. 



Shell imperforate, elongate-oval, rather thin; white, 

 tinged with brown below the suture and the periphery. 

 Whorls six, including a protoconch of nearly two smooth in- 

 flated turns. Spire-whorls, each bears four projecting tubes 

 with a rounded aperture ; between these are double varices, 

 the more prominent leaf midway between the tubes, the 

 other just behind a tube ; each leaf is flexuous and triden- 

 tate, and ends behind in a hollow-pointed recurved spine. 

 Body-whorl nearly as long as the spire, narrowed at the 

 base, from which project the ends of three canals, towards 

 *ach of which the two leaves of a varix converge to unite. 

 Aperture roundly-oval, small, entire, peristome projecting, 

 detached, simple, and sharp. Canal completely closed from 

 the aperture to its end, wide, slightly oblique to the left, 

 recurved. Tube long, round, curved. 



Dim. — Length, 5'5 mm. ; spire, 2"8 mm. ; body-whorl, 

 2'7 mm. ; tube, 2'1 mm. ; breadth, 26 mm. 



Locality. — 20 examples dead in 104 fathoms, 35 miles 

 south-west of Neptune Islands. 



