REPORT ON THE CIRRIPEDIA. 143 



'Phc margin separating the rostrum and the carina can hardly be made ou1 (in the 

 other, smaller specimen, it is more easily distinguishable). The number of teeth by which 

 the two valves articulate together is only a single distinct one at the rostrum and two 

 at the carina. The apex of the rostrum does not project beyond the surface of the valve, 

 that of the carina only slightly. Both valves, but especially the rostrum, are slightly 

 bulky. The lower extremity describes a kind of bellying beyond the spine to which the 

 animal is attached; at the other side of the spine, the lower edge of the carina and 

 rostrum, being turned over, almost touches the basal margin of the fixed scutum and 

 tergum. The growth-ridges of both valves are very distinct, but they are at considerable 

 distances from each other. The immovable scutum is relatively small ; its shape is 

 t riangular ; it projects with a rather broad radius over the immovable tergum. A 

 considerable part of this valve is to be seen on the side of the movable valves. The 

 apex is bluntly pointed. The immovable tergum is large, bluntly pointed also, and 

 indistinctly divided into a middle and two lateral portions. The immovable tergum has 

 a much greater area than the immovable scutum, and reaches considerably higher upwards 

 than the scutum does. 



According to the label of the microscopic preparation, the present species lives 

 attached to the spine of a deep-sea Echinid of the genus So I ruin. The species was taken 

 in the Southern Atlantic, at Station 335, March 16, 1876 ; lat. 32° 24' S., long. 

 13° 5' W.; depth, 1425 fathoms ; bottom temperature, 2° - 3 C; bottom, Globigerina ooze. 



Verruca obliqua, n. sp. (PI. XII. figs. 15-17). 



Shell white ; surface with not very prominent growth-ridges. Shell placed obliquely 

 on the surface of the object to which it is attached. Scutum triangular, narrow; the 

 part between the third articular ridge and the tergal margin almost wanting. Tergum 

 with a very blunt apex ; quadrangular. Rostrum quadrangular, relatively large, slightly 

 convex; apex in one of the specimens projecting freely, in the others not projecting. 

 Carina with the apex projecting freely and reaching a great deal higher up than the apex 

 of the rostrum does. The carina] margin of the rostrum is furnished with a single tooth, 

 by means of wdiich the valves articulate with one another. 



This distinct form is represented by four very small specimens. Their most 

 prominent characteristic is the form of the scutum, which is very narrow ; the whole of it 

 represents that part of the scutum in the other deep-sea species which is situated between 

 the third articular ridge and the occludent margin. A second character is furnished by 

 the carina. In all the deep-sea species of the genus Vi rruca this valve has indeed the 

 shape of a keel, but the part which is placed at the side of the movable .scutum and 

 tergum is always very large ; the other part, at the side of the immovable valves, is 



