DR WILLEY FROM THE SOUTH SEAS. 405 



The specimens agree with Herrick's description of the West Indian examples com- 

 pletely, even in the points in which the latter differ from Adams's figures. 

 2 c/ and 1 $ from Blanche Bay, New Britain. 



Tribe. CARIDEA. 



Family. Atyidae. 



Gends. Atya Leach, 1S17. 



11. Atya moluccensis de Haan, 1849. 



Atija moluccensis, de Haan, Faun. Japon., Crust., p. 186 (1849) ; Miers, Ann. Mag. 

 N. H. (.5) V. p. 382, PI. XV., Figs. 3, 4 (1880); de Man, in Max Weber's "Zool. Ergebnisse," 

 u. p. 357, PI. XX., Fig. 20 (1892). 



1 (/ and 1 ? taken in a stream near Cape Gazelle, New Britain. 



Family. Pontoniidae. 



Further particulars are now added to the j)reliminary diagnoses of certain species in 

 this family already published b}' the author in the " Annals and Magazine of Natural 

 History," 1898. 



Genus. Periclimenes Costa, 1844. 



Periclimenes, Costa, Ann. Ac. Aspir. Nat. Nap. Ii. (1844); Faun. Regn. Nap. II. 

 1 (1846); Borradaile, Ann. Mag. N. H. (7) n. p. 380 (1898). 



Pelias, Roux, Mem. s. 1. Salicoques, p. 2n (1831) nom. praeoc. 

 Anchistia, Dana, U. S. Expl. Expd. Crust. I. p. 577 (1852). 

 Bennisia, Norman, Ann. Mag. N. H. (3) VIU. p. 278 (1861). 



The species described as Pelias migratorius by Heller in 1862 was afterwards 

 placed by the same author in his new genus Palaemonetes, and recognised as identical 

 ■with P. varians (Leach). It is therefore erroneously placed in the genus Periclimenes 

 in the revision of that genus by the present writer (Ann. Mag. loc. cit.). 



12. Periclimenes spinigerus (Ortm.), 1890. 



Anchistia spinigera, Ortmann, Zool. Jahrb. v. Syst., 3, p. 511, PI. XXXVI., Figs. 23, 

 23 a (1890). 



Periclimenes spinigerus, Borradaile, Ann. Mag. N. H. (7) II. p. 383 (1898). 

 1 $ from Lifu, Loyalty Islands. 



13. Periclimenes lifuensis Borradaile, 1898, Figs, la — Ic'. 

 Periclimenes lifuensis, Borradaile, Ann. Mag. N. H. (7) ii. p. 384 (1898). 

 Carapace. The rostrum is straight, outreaches the antennal scale, and bears six 



teeth above but none below. The supraorbital and antennal spines are present, but 

 not the hepatic. There is also a spine on the mid-dorsal line behind the rostrum. 

 The pterygostomial angle is acute. 



1 This reference (and all similarly placed references) relates to the figures on Plates XXXVI. — XXXIX., the 

 numbers of which run consecutively. 



w. IV. 55 



