Mr. E. J. Miers on the Squillidae. 115 



Hob. Mediterranean (Toulon, Corsica, Roux ; Messina, 

 Kessler ; Sicily, Cocco ; Algiers, Lucas ; Morea, Guerin ; 

 Nice, Holler). 



I have seen no specimens of this species ; and the above 

 description has been taken from the description and figure of 

 Roux. According to that author, the general colour of the 

 body is greenish or yellowish, the antenna? and hairs are 

 rose-coloured, the posterior margin of all the postabdominal 

 segments and the last two segments are brick-red. 



It is evidently very nearly allied to P. Lessonu, but differs 

 apparently in the absence of lateral spinules on the rostral 

 plate, of the small tooth or tubercle at the base of the outer 

 margin of the dactyli of the raptorial limbs, and in the exist- 

 ence of the median terminal spine of the last postabdominal 

 segment. 



GONODACTYLUS. 



Gonodadylus, Latr. Encjcl. Meth. Hist. Nat. x. p. 473 (1825) ; Cr. in 

 Cuv. Regne Anim. iv. p. 109 (1829) ; M.-Edw. Hist. Nat. Cr. ii. 

 p. 528 (1837) ; De Haan, Faun. Japon. Cr. p. 220 (1849) ; Dana, 

 Cr. U.S. Expl. Exp. xiii. p. 615 (1852). 



Tn nearly all its characters this genus resembles Pseudo- 

 squilla; but the penultimate joint of the raptorial limbs is not 

 armed with minute pectinately-disposed teeth as in that genus, 

 and the dactylus is considerably dilated at base ; the mobile 

 spines at the distal end of the terminal postabdominal seg- 

 ment are very small or obsolete. 



The Gonodadylus setimanus of De Kay (Zool. New- York 

 Fauna, Cr. p. 34, pi. viii. fig. 2) does not belong to the Stoma- 

 topoda, but to the Thalassinidea, and is regarded by Gibbes 

 as identical with Callianassa major , Say. 



* Rostrum not ending in a spine. 



Gonodadylus scyllarus. 



Squilla arcnaria prona, Seba, Thesaurus, iii. p. 5, pi. xx. fig. 3 (1758). 



Cancer scyllarus, Linn. Syst. Nat. (ed. xii.) p. 1054 (17GG). 



Squilla scyllarus, Falbr. Ent. Syst. ii. p. 512 (1793) ; Suppl. p. 416 



(1798). 

 Cancer (Mantis) scyllarus, Herbst, Nat. Krabben &c. ii. p. 99, pi. xxxiv. 



fig. 1 (1796). 

 Squilla scyllarus, Lam. Hist. Anim. sans Vert. v. p. 189 (1818). 

 Gonodadylus scyllarus, Latreille, Encycl. Meth. x. p. 472 (1825) ; 



M.-Edw. Hist. Nat. Crust, ii. p.! 529 (1837) ; Atlas in Cuv. R. 



A. Crust, (ed. 3) pi. Iv. fig. 2 ; White (part), List Cr. Brit. Mus. 



p. 85 (1847) ; Hoffmann, Recherches Faiuie Madagascar, Cr. p. 43 



(1874). 



Carapace smooth, nearly oblong, scarcely narrowing ante- 



