106 



prominent and less sinuate than in specimens in the Pea- 

 body Academy identified by Prof. Smith. There is also a 

 crest on the upper portion of the propodus while in P. 

 validus this crest is obsolete. The ambulatory feet are 

 also less hairy and more nearly cylindrical. 



Panopeus affinis Streets & Kingsley. Panopeus transversusf Locking- 

 ton, 1. c., Sept. 4, 1876 (non Stimpson) 



Is very near P. transversus Stm. and P. crenatus Edw. 

 & Lucas, but has the rostrum more nearly rectangular than 

 in cither, and as* prominent as in the latter. The front is 

 bilobed, the lobes being slightly arcuate, truncate, not 

 sinuate. A sulcus on the rostrum near the orbits. Orbits 

 with two obsolete fissures above. The notch between front 

 and orbits as in transversus. The surface of the carapax 

 is uneven near the antero-lateral teeth, being crossed by 

 grooves running inward from the emarginations between 

 the teeth. There is also, as in P. crenatus, slight indica- 

 tions of a separation of the angle of the orbit from the 

 second normal tooth. The sub-hepatic regions are granu- 

 late as in P. transversus. The spine on the inner margin 

 of the carpus occupies a median position instead of being 

 near the distal extremity as in both species with which 

 this has been compared. 



Chlorodius Fisheri Lockington, 1. c., Sept. 4, 1876. 



This species is probably new, but as the specimens are 

 somewhat mutilated we cannot positively say. It differs 

 considerably from Stimpson's short diagnosis of C. occi- 

 dentalis. 



Pilumnus lunatus Edw. et Lucas, D'Orbigny, Voy. dans 1'Amer. Meri- 

 dionale, Crust., 20, pi. IX, f. 2; Stimpson, Ann. Lye., vii, 216. 

 Heteractcea pilosus Lockington, 1, c., Sept. 4, 1876. 



The single specimen we have agrees with the short de- 



