324 ME. E. J. MIEES'S EEYISION OF THE HIPPIDEA. 



hairy. Second joint of outer antennae with three spines at its 

 distal extremity, of which the median is very much the longest, 

 and directed slightly outward; flagellum very long, robust, multi- 

 annulated, and ciliated on its outer margin. Third joint of the 

 outer maxillipedes with the lobe at its antero-internal angle tri- 

 angular and subacute. Terminal joint of the first pair of legs 

 ovate ; those of the second and third pairs of legs falcate, very 

 broad at base, narrow and subacute in their terminal halves. 

 Eami of the appendages of the penultimate postabdominal seg- 

 ment short, the outer shorter and broader oval than the inner. 



The length of the carapace of the largest specimen from Brazil 

 is 1 inch 2 lines ; but in a specimen of uncertain locality in the 

 collection the carapace is nearly 1^ inch long. 



Hah. Brazil {3fus. Paris, Brit.) ; Rio Janeiro (Dana, Seller, 

 Coll. Brit. Mus.) ; Five-Fathoms Bay {Coll. Brit, Mus.) ; Vene- 

 zuela {Coll. Brit. Mus.) \ Martinique {Herhst); Cuba, Mexico 

 {Guerin-Meneville) ; United States {Coll. Brit. Mus.); Boston, 

 New York, Charleston Harbour, Key West {Gibbes). 



Specimens from Mazatlan, referred to this species by De 

 Saussure, belong in all probability to H. analoga. I think there 

 can be little doubt that K. talpoidea, Say, is identical with the 

 Brazilian H. emerita, although Gibbes, founding his conclusions 

 upon a comparison of four specimens from Carolina with two 

 from Brazil, is of the opposite opinion. The specimens from the 

 United States in the British Museum, presented by Say, are 

 small, and scarcely suffice to determine the question, but certainly 

 do not appear specifically distinct. 



According to De Kay {I. c.) and Smith (Trans. Conn. Ac. iii. 

 p. Ill, 1877), H. talpoidea inhabits the entire eastern coast of the 

 United States from Cape Cod southward to the west coast of 

 Florida, Egmont Key being the most southern and western 

 habitat known to the latter author. 



It is impossible to say to what species belong the specimens 

 from the Sandwich Islands referred by Eandall to H. emerita^ as 

 no description accompanies them. 



HiPPA ANALOGA. PI. V. fig. 10. 



Hippa emerita, M.-Edw. ^ Lucas, Crust, in D*Orbigny's Voy. Amir, 

 merid. vi. p. 32 (1843)5 Nicolet, Crust, in Gay, Hist. Chile, iii. 

 p. 185 (1849) ; De Saussure, Rev. et Mag. Zool. v. p. 367 (1853), nec 

 Edwards. 



