BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 11. N:o 16. 23 
somewhat elongated. Epimerals not distinct. Uropoda long 
and narrow. ”Telson mediocre. 
1. Th. Steenstrupi, n. sp. 
Diagn. Peduncle of first pair of antenn&e very thick. 
Head with pereion shorter than pleon. Carpal process of 
first pair of pereiopoda longer than a third of metacar- 
pus; carpal process of second pair longer than half the 
metacarpus. Metacarpi of third and fourth pairs elongated, 
dactyli a third of the length of metacarpi. Femora of 
last three pairs subequal, truncated below; metacarpi elon- 
gated, that of fifth pair the longest. Rami of last pair of 
uropoda equal, narrow, acute. Telson round, equalling a fifth 
of the length of the peduncles of the last pair of uropoda. 
Hab. ”Propical parts of Atlantic. 
Gen. 9. PHRONIMOPSIS, Cravus, 1879. 
>Organismus der Phronimiden,» Arbeiten aus dem Zoologischen Institute 
der Univ. Wien und der Zool. Station in Triest. Tom 2, p. 63 (5). 
ISTER spinifer, CrAvs, 1879. 
L. ec. pv 64 (6); pl: 1, fig: 1—3: 
Hab. Strait of Messina. 
ZEN Sarsi, Dn. sp. 
Diagn. Pereion normal, not tumid, without pigment-spots. 
The first segment of pereion free. Antenn&e without spinous 
processes. Femora, genua and tibie of last three pairs of 
pereiopoda produced into sharp points at the lower anterior 
corners. Rami of uropoda long narrow, sharppointed, densely 
fringed with minute hairs. Telson semicircular, shorter than 
a sixth of the peduncles of the last pair of uropoda. 
Hab. Tropical parts of Atlantic. 
Family 9. PHRONIMIDAE, Dass, 1852. 
Diagn. Head large, tumid, more or less conical, much deeper 
than the body. Eyes large, occupying parts of the sides and 
