109 



at the outer angle, is short and sometimes broken off. In every other 

 respect the specimens examined are identical with the description and 

 figure given by Dana. The fourth tooth on the a.ntero-lateral margin is 

 smaller than the rest, but the difference is not so great as is pictured 

 in the figure. 



ACHELOUS GEANULATUS, {M. Edw.) AJph. M. Edwards. 



Achelous granulatus, Alph. M. Edwards, Arch, da Mus. d'Hist. Nat. de Paris, 1H60, x, 



344. 

 AmpMtrite speciosa, Dana, U. S. Expl. Esped. Crust., i, 276, pi. xvii, f. 1. — Stimpson, 



Proc. Acad. Nat. Sci. Phila., 1858, 39. 

 Aviphitrite gladiator, De Haan, Faun. Japou. Crust., 65, pi. xviii, f. 1 (et non pi. 1). , 

 Lupa granulata, M. Edwards, Hist. Nat. des Crust., i, 454. 

 Locality : Fanning Group of Islands, North Pacific. 



CAECINUS MCENAS, [Linn.) Leo^li. 



Carcinus mcenas, Leach, Melac. Podophth. Brit., pi. v; Edinb. Eucyclop., vii, 429; 

 "Trans. Linn. Soc, xi, 314 ; Encyclop. Britann. Suppl., i, 410. — Audouin, dans 

 I'ouvrage de Savigny, Egypte. Crust., pi. iv, f. 6. — M. Edwards, Hist. Nat. des 

 Crust., i, 434. — Gould, Keport on the Invertebrata of Massachusetts, 321. — De 

 Kay, Nat. Hist. N. Y., Crust., 8, pi. v, f. 5-6.— Bell, British. Crust., 76.— 

 Alph. M. Edwards, Arch, du Mus. d'Hist. Nat. de Paris, 1860, x, 391. — Heller, 

 Crust. Novara Exped., 30. 



Carcinus granulatus, Smith, Eeport of Commissioner of Fish and Fisheries, 312, 547. 



Poriunus mcenas, Leach, Edinb. Encyclop., vii, 390. — Costa, Fauna del regno di Napoli, 

 Crust, g. Portuno., 7. 



Cancer granulatus, Say, Jour. Acad. Nat. Sci. Phila., 1817, i, 61. 



Cancer mcenas, Linn., Syst. Nat., xii, i, 1043. — Pennant, Brit. Zool., iv, 3, pi. iii, f. 3. — 

 Baster, op. subst. ii, 19, pi. ii. — Herbst, Krabben und Krebse, pi. vii, f. 46.— 

 Fabricius, Entom. Syst. Suppl., 11, 450 ; 41, 334, 3. — Latreille, Gen. Crust, 

 et Insect., 1, 30, 2. 



Locality : Hawaiian Islands. 



This is the first well-authenticated instance, to my knowledge, where 

 the genus Carcinus is recorded as coming from the Pacific regions. In 

 the museum of the Academy of Natural Sciences of Philadelphia, there 

 is a specimen labeled from Australia, with an interrogation mark. It is 

 probable that all the specimens obtained from this region have only been 

 stragglers from the Atlantic. The Hawaiian Islands, where the last 

 came from, have been thoroughly ransacked by collectors for this kind 

 of life; and, had the species been common, it could not have well eluded 

 the search so long. That it is a wandering crab, almost cosmopolitan in 



