Miscellanea. 191 
Fuuine in wanting the lateral fasciole. Dorsal tubercles small, 
equal. 
Meoma grandis. Subcordate, rather convex. 
Hab. Australia, Capt. Sir Edward Belcher, K.C.B., R.N. 
Faortna. Shell ovate, subcordate, ventricose; vertex central, 
hinder end truncated, without any distinct subanal disk ; ambulacra 
sunken, the lateral ones regularly diverging, anterior longest, ante- 
rior odd one obliterated, marked by a deep groove, all surrounded 
by a rather sinuous peripetalous fasciole without any lateral or 
subanal fasciole or anal plate ; ovarial pores two, three, or four. 
Faorina chinensis. Purple, with a smooth band between the upper 
anterior tessere, and a smooth vertical band over the suture 
from the end of the anterior lateral ambulacra to the front of the 
mouth. 
Hab. China, J. R. Reeve, Esq. 
Faorina antaretica. Subcordate, rather depressed; lateral ambu- 
lacra ovate, longitudinal, very deep, forming a very distinct rib on 
the inner side of the shell; peripetalous fasciole broad, sinuous. 
Hab. South Polar Seas, Capt. Sir James Ross’s expedition. 
This species differs from Favrina cavernosa (Erichson, Arch. 1845, 
t. 11. f. 2) inthe ambulacra being Jess broad, and in the fasciole 
being much broader and more distinct. 
Tripylus Philippiit. Cordate, rather depressed ; lateral ambulacra 
oblong, linear, the hinder pair not half the length of the anterior 
one, the sides of the hinder part of the peripetalous fascicle parallel. 
ab, ——. 
The genus Tripylus of Philippi differs from Desoria and Schizaster 
in the regular cordate form and central vertex, and differs from 
Brissiopsis, with which M. Agassiz confounded it, in the absence of 
the subanal fasciole. 
Desorta. Shell ovate, convex, vertex subanterior ; ambulacra 
natrow, sunken, like Brissus, the anterior odd one formed of a series 
of small double pores, all surrounded by a very sinuous peripetalous 
fasciole giving off a lateral fasciole, which extends to the vent 
without any distinct subanal fasciole or subanal disk. 
Very like Brissus, but distinguished by the presence of the lateral 
fasciole and the absence of the subanal one and disk. 
Desoria Australis. Ovate, purplish white. 
Var. 1. Brown, each of the tesserze with a broad pale edge. 
Hab. Australia, Flinder’s Island, Joseph Milligan, Esq. Several 
specimens. 
Schizaster ventricosus. Wery like S. canaliferus, but the hinder 
part of the body is very high, the hinder end nearly vertical, ven- 
trigose, and regularly rounded above the vent, the hinder part 
of the peripetalous fasciole straight between the two lateral am- 
bulacra. 
Hab. Australia ? ? 
Schizaster Jukesii. Like former, but vertex nearly central ; 
crown strongly keeled between the two hinder ambulacra; the part 
of the peripetalous fasciole between the anterior and posterior 
ambulacra regularly bent up nearly to the vertex, the hinder end 
vertical, regularly rounded above the vent. 
Hab. North Australia, J. B, Jukes, Esq. 
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