Notes on NoHh Ameriom Crustaoea. ITS 



fissmed. In the cUelipeds there are no excavations on the 

 Buperior side of the meros, but this joint, witli the carpns and 

 base 'Of the hand, is granulated; hand elsewhere smooth and 

 polished, with the iingera less gaping than in T. erosa, and 

 [he dactylus one-toothed within. Ambulatory feet depressed, 

 angular or deutated ; meros in the first three pa.rs longi- 

 tudinally ridged and greatly dilated posteriorly the ddated 

 portion with two deep concavities, sometimes confluent; penult 

 joint uuidentate on the superior margin. Color bnght red, with 

 yellow patches on the carapax. 



Lenfijth of the carapax 0-32 ; breadth 0-27 inch. 



round at the Tortugas Is., Florida, by Dr. Whitehurst. 



Hyas araiieus. 



Hi/as araneus Leach, Mai. Pod. Brit., pi. 21, A. 



We are enabled to announce this species as an inhabitant of 

 our coast, having dredged several specimens ofi the coast of 

 Maine on a cruise in the summer of 1858. 



Milnia, nov. g 



en. 



We propose this name for a section of Per^cem with less 

 completely tubular orbits, the species of which have been 

 placed in Pisa by some authors. The type is P^sa hcornuta 

 ttr! (/'.«.« iLn. M. Edw.) It is very different in aspec 

 from those sharply triangular forms, with the moveable part of 

 he antenna slender and concealed, which constitute the tne 

 Ferioerm, and approaches Pisa and Tia,.,na in =^1"'P- J''« 

 horns of the rostrum are divergent, and the moveable patt ot 

 • „c^.l from ahove as well as the spimform 



"" ""^7;:\Z oint "wPil it differs in its orbits, 

 Z::::l :Xt t^lur as m r,W., .-om which ^ter 



