8 STALK-EYED CRUSTACEA. 
the first to the last one. The upper margin of the orbit is thickened and 
produced into a blunt preocular tooth. The outer margin of the pterygo- 
stomian region is furnished with two or three rounded tubercles. The merus 
of the chelipeds has two short spines at the proximal end on the superior 
border and one at the distal extremity ; otherwise the limbs are unarmed; 
the fingers of the chela are short, gape slightly at the base, and have blunt 
tips; no teeth on cutting edges. 
Length of carapace, including rostrum, 39 mm.; length of rostrum, 16 
mm.; breadth of carapace, including lateral teeth, 28 mm. 
Station 3368. 66 fathoms. 1 male. 
Sphenocarcinus corrosus A. M. Edw., the type of this genus, was taken near 
the Barbadoes in 100 fathoms during the voyage of the “ Hassler,” and near 
The two specimens secured 
the same locality in 94 fathoms by the “ Blake.’ 
are females. In S. agassizi there is a blunt preeocular tooth, wanting in the 
typical species. The ends of the rostral horns do not lie in exactly the 
same plane in the single example before me, but this is probably due to 
accidental malformation. The abdomen (male) is seven-jointed. In both 
species there is a narrow fissure in the upper margin of the orbit, just 
anterior to the postocular tooth. 
Sphenocarcinus agassizi was also obtained by the “ Albatross” in 1889, in 
the Gulf of California, at depths of 14 and 71 fathoms. 
ANAMATHIA Smiru. 
Amathia Roux, Crustacés de la Méditerranée, 1** Livr., 1828 (om. preoc.). 
Anamathia Situ, Proc. U. 8. Nat. Mus., VII. 498, 1884. 
Anamathia occidentalis Fax. 
Plate I, Fig. 2; 2. 
Bull. Mus. Comp. Zodl., XXIV. 150, 1893. ° 
Carapace piriform, strongly arched when viewed in profile, its surface 
clothed with tuberculiform cutaneous vesicles * and with delicate setae which 
are hooked at their tips. The spines and tubercles of the carapace are 
arranged as follows: four on the gastric region, two of which are in the 
median line and one on each side; the posterior median has the form of a 
blunt tubercle, from which a blunt low keel runs back to the cardiac region ; 
* Like those on the carapace of Anamathia carpenteri (Norman), described and figured by G. O. Sars, 
Norske Nordhavs-Exped., Crustacea, I. 7, Plate I. Fig. 7, 1885. 
