MOLLUSCA. 29 



anfractibus 15-18, bicarinatis; carinis albo maculatis ; inter carinas cancellata, lineis albis longitudi- 

 nalibus intervallis fuscis ; sutura sulcata ; apertura subquadrata ; sinu laterali margine contracta. 



Inhab. Straits of Malacca. In twenty fathoms, mud. 



113. Triphoris corrugatus, Hinds, I. c. p. 18, (Plate VIII. fig. 7.) Testa cornea; anfractibus 

 17-20, tricarinatis, inter carinas corrugatis, carina media secondaria ; sutura lseviter carinata; aper- 

 tura rotunda ; sinu laterali lineari. 



Inhab. New Guinea ; in twenty-three fathoms, among fine gravel. Straits 

 of Malacca ; in eighteen to twenty fathoms, mud. 



114. Tkiphoris maxillaris, Hinds, 1. c. p. 18, (Plate VIII. fig. 8.) Testa rosea; anfractibus 

 16-18, bisulcatis, superficie laevigata ; marginibus sulcorum granulatis ; sutura sulcata, marginibus 

 granulatis ; apertura subquadrata; sinu laterali parvo, patulo. 



Inhab. Straits of Malacca. In eighteen to twenty-three fathoms, mud. 



This species is very remarkably characterized. The surface is perfectly 

 smooth, and of an agreeable rose colour ; but each whorl is divided into three 

 unequal parts by two furrows. The margins of each furrow, and also of the 

 depressed line which marks the course of the suture, are provided with a series of 

 horizontal granulations, which look towards each other, but do not appear above 

 the surface of the shell, but under a magnifying glass display an appearance 

 which seems to justify the specific name. 



115. Triphoris micans, Hinds, 1. c. p. 18, (Plate VIII. fig. 9.) Testa glacili, attenuata, fusca; 

 anfractibus 20-22, superne coarctatis, triseriatim granulosis, serie inferiore maxima albida, superiore 

 minima; apertura subquadrata ; sinu laterali lineari. 



Inhab. New Guinea. In five to eighteen fathoms, mud. 



116. Triphoris asperrimus, Hinds, 1. c. p. 18, (Plate VIII. fig. 10.) Testa, gracili, attenuata; 

 anfractibus 24-26, superne valde coarctatis, inferne angulatis, serie duplici granulorum ; prope sutu- 

 ram granuloso-carinata. 



Inhab. New Guinea. In eight fathoms, mud. 



It is remarkable for its long needle-like shape ; and the upper portion of each 

 whorl being strangulated, and the lower angular and with a series of tubercles, 

 the shell has a very rough and jagged appearance. 



117. Triphoris elegans, Hinds, 1. c. p. 18, (Plate VIII. fig. 11.) TesUialba, fusco marmorata ; 

 anfractibus 16-18, quadricarinatis ; carinis duabus pi imaiiis, inferiore maxima, duobus secondares 

 alternantibus ; carinis omnibus maculis albis et fuscis ornatis ; apertura rotundata ; sinu laterali 

 patulo. 



Inhab. Straits of Malacca. In twenty fathoms, mud. 



i 



