Ld. Cominella. 
Gi} <Typhis- bivaricates n. sp. Pl. xxi., figs. 1 and 2. S65 ; 
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 coste. On tne 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- 
brown lines and flames crowd along the margined suture; 
and axial zig-zag dark-brown lines, rather more numerous 
than the cost, 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 
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 
each 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, 28 mm.; body-whorl, 
27 mm. ; tube, 2°1 mm.; breadth, 2°6 mm. 
Locality.—20 examples dead in 104 fathoms, 35 miles 
south-west of Neptune Islands. 
