PHRYXUS. 
257 
Gen. 135. PHRYXUS, Batiie* 
Antennae four, shorty slender. Eyes (of the male) small. 
Back of the female flat, of the male convex ; abdomen of 
the female convex, of the male flat ; legs of the female in- 
clined towards the back, those of the male formed for walk- 
ing. Branchiae of the female large, two-lobed; those of the 
male rudimentary. 
Phryxus Hippolytes, Kathke.— Eemale with scarcely 
any legs on one side of the body ; the lobes of the branchiae 
larger and somewhat oblong; the tail of the male produced 
into a short blunt point. 
Pound on a species of Hippolyte , and also on the White 
Shrimp on the coast of Sussex (Bond. Proc. Ent. Soc. April, 
1846). Another species of Phryxus is found on the Pagurus 
Bernhardus on the Norwegian coast; it is described and 
figured by Rathke. This species is most probably also a 
native of our seas. 
* Nov. Act. Acad. Nat. Cur. xx. p. 40. 
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