582 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [80] 



Mangilia oxytata Bush, sp. nov. 



B. range, 48 ftithoms.t 



At station 2,108, a single dead specimen (No. 35,395), somewhat re- 

 sembling the preceding, was taken. 



It consists of about eight whorls; those of the spire strongly angu- 

 lated just below the middle, and ornamented with about nine rather 

 prominent, straight, transverse ribs, commencing at the periphery and 

 extending to the suture; these, with their wide, concave interspaces, are 

 crossed by three rather strong, nearly smooth, rounded, equally distant 

 carinse, the third defining the suture. Smooth, oblong nodules are 

 formed by the intersection of these with the ribs, those on the pe- 

 riphery being the most conspicuous, as the first carina is slightly wider 

 than the other two. The subsutural band is wide, slightly concave, 

 crossed by delicate, excurved, raised lines or riblets extending from the 

 suture to the median carina, and by three or four fine, slightly raised, 

 equally distant, revolving threads. The nucleus is large, semi-trans- 

 parent, shining, composed of four and a half turns, with a small, exceed- 

 ingly prominent, decidedly upturned, apical whorl, which, with the two 

 following, is smooth and glassy ; the next two have a fine, smooth median 

 carina. On the body- whorl the ribs continue to the base of the siphon, 

 and are crossed by small, nearly smooth, rounded, equally distant cin- 

 guli, which commence a little below the third principal carina and con- 

 tinue to the end of the canal. The entire surface is covered with very 

 minute microscopic granules. Aperture narrow-ovate, pinched up an- 

 teriorly into a short, rather narrow, straight canal. Outer lip very 

 much thickened, with a conspicuous varix and a thick, smooth, rounded, 

 very irregularly curved, light brown edge, and a deep, narrow sinus 

 considerably below the suture, at the angle of the shoulder; inner lip 

 inconspicuous ; columella slightly curved. 



Color yellowish white, tinged with brown just below the suture, and 

 on the anterior part of the body-whorl. 



Length, 5™«»; breadth, 2.5°^™; length of aperture; 2™"»; its breadth, 



This species, although closely resembling the preceding, is sufficiently 

 characterized in having a much stouter form, more acute apex, more 

 angularly shouldered whorls, fewer and more prominent ribs, more 

 numerous cinguli, and especially in having its entire surface micro- 

 scopically granulated. 



Mangilia ? glypta Bush, sp. nov. 



B. range, 48 fathoms.t 



Shell small, semi-transparent, fusiform, with about five slightly convex 

 whorls below the nucleus, which consists of three and a half smooth, 

 transparent, white, glassy, regularly increasing turns. The apical whorl 

 is small, not very prominent, somewhat oblique. The sculpture con- 

 sists of about ten rather indistinct, narrow, longitudinal ribs, and broad. 



