192 BULLETIN OF THE 
There is, however, in the fragment of the anal part of test a very distinct and 
well-defined subanal fasciole, as in Hupatagus, and a somewhat indistinct peri- 
petalous fasciole close to the ambitus, as in Paleopneustes Murrayi A. Ag. Chall. 
Echini, far outside of the termination of the petals. There are large tubercles 
on the interambulacral plates between the petals extending to the peripetalous 
fasciole, arranged in more or less regular horizontal lines. Only fragments or 
the interambulacral areas near the abactinal system, nothing of the actinal 
surface of the test brought up. The primary tubercles carry long, stout, 
slightly curved spines, 
(Sigsbee.) Off Havana, 242 fms, 
"Paleotropus Josephine Lovin. 
(Sigsbee.) Off Havana, Lat. 22° 09 N., Long. 82? 01/ W. 242 fms. 
(Sigsbee.) Off Havaua. 177 fms. 
Paleopneustes cristatus A. ۰ 
A young specimen, not more than one half an inch in length, was dredged in 
175 fathoms, off Havana, by Captain Sigsbee. It differed in no way from the 
older specimens, except, of course, in having a smaller number of plates, but 
preserved all the characteristics of the larger specimens figured in the Hassler 
Expedition Echini. 
(Sigsbee. Off Havana. 175 fms. 
(Sigsbee.) Off Havana Lat. 22° 11! N., Long. 82° 21! W. 242-450 fms. 
Rhinobrissus micrasteroides A. Aa. spec. nov. 
A small specimen of this genus, but half an inch in length, differing from the 
only other species of this genus in having its lateral ambulacra less sunken, 
a sharper, thinner peripetalous fasciole, a more vertically truncated posterior 
extremity. This species shows the affinity of the genus Rhinobrissus with Mi- 
craster, from which it differs in having a peripetalous fasciole and an anal 
branch of the subanal fasciole, 
In alcohol the spines are of a greenish color, Anal plastron quite short, and 
wide ambulacral areas on the actinal side, Many of these characters will prob- 
ably greatly change with age, and I merely allude to this interesting species, 
as it is, with the fragments of the genus allied to Hupatagus, another of the 
few genera of Echinide in common between the West-Indian and the Pacific 
Fauno. 
(Sigsbee.) Off Havana. 175 fms, 
Brissopsis lyrifera ۰ 
Station No. 49. Lat. 28° 514/ N., Long. 89° 012 W. 118 fms, 
(Sigsbee. Off Havana, 122-240 fms, 
