240 PROCEEDINGS OF THE ACADEMY OF 



OCYPODOIDEA. 



Family MACROPIITHALMID.E, 



Subfamily Ocypodin^. 



Ocypoda Gaudichaudii, Edw. et Lucas. DOrbignj-'s Voy. en Am. M^iid., Crujt., p* 



2(5, pi. XI., fig. 4. 

 Ocypoda rhombea, M. Edw. Hist. Nat. des Crust., torn. II., p. 46. 



Family GRAPSID^. 



Subfitmily Grapsin^. 

 Grapsus pictus, Latr. ; M. Edw. Hist. Nat. des Crust., torn. II., p. 86. 



Family GACARCINID^. 



Subfamily Ucain^. 

 Uca lavis, M. Edw. Hist. Nat. des Crust., torn. II., p. 22. 



ANOMOURA. 



Family HIPPID^. 



Hippa emerita, Pabr. : M. Edw. Hist. Nat. des Crust., torn. 11., p. 205. 



Family PORCELLANID^. 



Petrolisthes armatus, Stimpson. An. Lye. Nat. Hist. N. Y., vol. II-, p. 73. Por^ 

 eellana arniata, Gibbes, Proc. Am. Assoc, ISoO, p. 176. 



Petrolistlies ocoidentalis, Stimpson. An. Lye. Nat. Hist. N. Y., vol. VII., p. 73. 



Family PAGURID^. 



Subfamily Paguki?s.<k. 

 Aniculus longitarsis, nov. sp. 



This species is very closely allied to A. fypicus, Dana, but dif- 

 ftii's from it in the greater length of the tarsus of the ambulatory 

 feet. In Paguri.is aniculus (Aniculus h/picus^ Dana), Milne Ed- 

 Avards describes the tarsus as being " extremely short." Xo state- 

 ment is made as to its length in comparison with the preceding 

 article; but in Dana's figure, and in that figured in Quoy and 

 (iaymard, Y03-. de I'Urania, it is shorter than the preceding arti- 

 cle. In A. longifarsis it is always longer. The median areolet is 

 distinct, trapezium-shaped, and is not produced to the posterior 

 edge of the gastric region. 



[December 5, 



