348 Dr. A. Arnbick-Christie-Linde on a remarkable 
Locality. 
N.W. Spitzbergen, Smeerenburg Bay. Depth 25 fathoms. 
Bottom, stonesand clay. One specimen collected, along with 
Styela rustica, by the Spitzbergen Expedition, 1872-73, 
August 27, 1872. 
External Appearance. 
The body is ovoid and somewhat compressed baso-apically ; 
the test is spread out over the object to which the animal is 
attached. The apertures are situated on the dorsal surface, 
oS eC Ie 
/ 
Se 
a a. os 
J 
Ypsilocarpa clipeata, gen. et sp. n. 
Fig. 1.—External view, x 6 diam. 
Fig. 2.—Dorsal tubercle, x 33 diam. 
Fig. 3.—Part of the intestine, with rectum, x 6 diam. 
Fig. 4.—Gonad, X 6 diam. od, oviduct; vd, vas deferens. 
A 
J 
4 
1 
about 23 mm. apart, and, in this preserved specimen, scarcely 
raised over the surface, and not easily detected. They are 
surrounded by elevations of the test, which are covered with 
numerous minute tubercles (text-fig. 1). 
