of Edinburgh, Session 1880 - 81 . 
87 
the dorsal edge to the posterior end of the ventral edge, where it 
forms a projection. Colour dark-brown. Length of body, 1 *5 cm. ; 
breadth, *9 cm. ; length of stalk, 6 cm. 
Test thin but stiff, quite opaque. 
Mantle very delicate, musculature feeble. 
Branchial sac. — Folds slight. Transverse vessels all one size. 
Internal longitudinal bars wide. Meshes nearly square, usually 
rather elongated transversely. Spicules large and branched, not 
very numerous. 
Dorscd lamina formed of large blunt languets. 
Tentacles branched, sixteen in number, long and short alternately. 
One specimen from Station 44 (off the east coast of North 
America), 1700 fathoms. 
Culeolus moseleyi, n. sp. 
External appearance. — Shape of body regularly pyriform, anterior 
end attenuated and produced, being continued into the long thin 
stalk; posterior end wide and rounded; dorsal and ventral edges 
similar, convex, the anterior half of each tapering. Stalk turned 
towards the branchial aperture, which is on the dorsal edge, nearly 
one-fourth of the way down, and directed dorsally and anteriorly ; 
atrial in the centre of the posterior end, directed posteriorly. Sur- 
face even but rough, being equally granulated all over. Colour 
pale yellow. Stalk marked with a fine reticulation of a brown 
colour. Length of body, 2 cm. ; breadth, 1 *2 cm. ; length of stalk 
about 9 cm. 
Test rather thick and stiff, quite opaque. 
Mantle thin, muscle bands strong, but distant. 
Branchial sac. — Folds slight. Transverse vessels all the same 
size. Internal longitudinal bars wide. Meshes square. Occasional 
fine transverse and longitudinal bars cross the meshes, but they are 
rarely seen, and do not extend for any distance. Spicules very 
large and branched, numerous. 
Dorsal lamina. Languets. 
Tentacles small, very delicate, with only occasional minute 
branches. 
VOL. XI. 
M 
