~ 
58 STALK- AND SESSILE-EYED CRUSTACEA 
and a smaller tooth upon the pterygostomian region. Anterior legs 
with arm and wrist tuberculated, hand granulous externally, and 
tuberculated above ; ambulatory lees with the distal extremities of the 
joints nodose. Found also in Australia and Tasmania. 
Section II. ANOMOURA MEDIA. 
Anomoura media, Dana, U.S. Explor. Exped. xiii, Crust. part i, 
p- 400, (1852). 
Eyes not anterior to the first pair of antenne. Second pair of 
antenne posterior and exterior to the eyes. Abdomen inflexed, but 
not closely adpressed to the sternum, with caudal appendages. 
Sub-Tribe I]. HipprpEa. 
ITippiens, M. Edw. Hist. Nat. Crust. ti, p. 200, (1837). 
Hippidea,, Dana, U.S. Explor. Exped. xiii, Crust. part i, p. 400, 
(1852). 
Carapace obleng, convex, and rounded above. Hither the external 
or internal antenne very long. External maxillipeds somewhat oper- 
culiform, with the terminal joints considerably developed. First pair 
of legs monodactyle or subchelate, the three following pairs with the 
terminal joints more or less expanded, lamellate. Fifth pair of legs 
filiform, inflexed. 
REMIPES. 
Remipes, Latr. Gen. Crust. et Ins. i, p. 45, (1806); M. Edw. Hist. 
Nat. Crust. ii, p. 204, (1887); Dana, U.S. Explor. Exped. xiii, Crust. 
part i, p. 405, (1852). 
Carapace regularly oval, convex, not one and a half times as long as 
broad. Front rather wide and truncate, or obscurely two-lobed. 
Orbits with the external angle projecting beyond the level of the 
front. Hyes scarcely retractile, peduncle composed of two distinct 
portions. Internal antenne inserted beneath the eyes, large, with long 
multi-articulated flagella. External antenne short and very broad. 
External maxillipeds short and broad, with the third joint operculiform, 
the three terminal joints constituting a semi-prehensile organ. Anterior 
legs very long, broad at base, terminal joint styliform, acute, and shghtly 
flattened, terminal joimts of the next two pairs expanded and lamellate, 
