I 29 



with six longitudinal, impressed lines, finjjers short, dactylus 



much curved P. speciosa Dana ^) 



4. Anterior margin of front granulate, with two short teeth in the 

 middle; carapace smooth. Outer surface of palm of chela with 

 deeply-impressed, longitudinal grooves, interspaces granulate 



and reticulate P. capensis de Haan -) 



Anterior margin of front with three teeth at either side and two 

 in the middle of the front; carapace everywhere pubescent; 

 hepatic and especially branchial regions with a few groups of 

 spiniform granules. Outer surface of palm of chela with deeply 

 impressed, longitudinal grooves, in which many short hairs are 

 placed, interspaces strongly tuberculate, not reticulate . . . P. dentipes d.e Haan ^) 



I. Plagiisia depressa liiberculaia Lamarck. 



Literature: Alcock, Journ. As. Soc. Bengal, v. 69, prt 2, 1900, p. 437. 



Stat. 33. Bay of Pidjot, east coast of Lombok. i cf. 



Stat. 60. Haingsisi, Samau Island, near Timor. 2 ^f , i O juv. 



Stat. 193. Sanana, Sula Besi, i (f juv. 



The transition between this subspecies and iinviaculata is very gradual, but generally 

 the carapace presents spiniform tubercles, especially on the branchial regions, and is more 

 flattened in the former. 



This widely distributed subspecies occurs throughout the whole Indo-Pacific and even 

 on the coast of Chile. 



Percnon Gistel. 



1835. Acanthopus de Haan. Faun. Japon., Crust., p. 29 (praeocc). 



1848. Percnon Gistel. Naturgesch. d. Tierreichs, p. VIII. 



1876. Leioloplius Miers. Cat. Crust. New Zealand, p. 46. 



1900. Lioloplius Alcock. Journ. As. Soc. Bengal, v. 69, prt 2, p. 439. 



i) Proc. Ac. Nat. Se. Philadelphia, 1S51, p. 252; U.S. Expl. Exp., Crust., 1852, p. 369, pi. 23, f. 9: H. Milne-Edwards, Kwa. 

 Sc. Nat. (3) t. 20, 1853, p. 179; Miers, Ann. Mag. Nat. Hist. (5) v. i, 1878, p. 151; Kingsley, Proc. Ac. Nat. Sc. Philadelphia, 1880, 

 p. 223; DE Man, Notes Leiden Mus., v, 12, 1890, p. 89; Ortmann, Zool. Jahrb., Syst., Bd 7, 1894, p. 731; Borradaile, Proc. Zool. 

 Soc. London, 1900, p. S91 ; Rathbi'n, Mem. Mus. comp. ZooL Harvard Coll., v. 35, n" 2, 1907, p. 36. Hab. Paumotu Islands, Tahiti, 

 Funafuti and Rdtuma. 



2) Cancer ilialiiiis'i Linne, Syst. nat., ed. 10, 1758, p. 628; Mus. Lud. Ulrici, 1764, p. 438; Syst. nat., ed. 12, 1766, p. 1044; 

 Plagusia capensis de Haan, Faun. Japon., Crust., 1835, p. 58; P. toinentosa H. Milne-Edwards, Hist. nat. Crust., t. 2, 1837, p. 92 ; Mc Leay, 

 Smith's 111. Zool. S. Africa, 1838, p. 66; Krauss, Sudafr. Crust., 1843, p. 42, pi. 2, f. 6; P. c/iabriis White, Ann. Mag. Nat. Hist. 

 (i) V. 17, p. 497; List Crust. Brit. Mus., 1847, p. 42; /'. iomcniosa H. Milne-Edwards, Ann. Sc. Nat. (3) t. 20, 1853, p. 178; P. gai- 

 mardi H. Milne-Edwards, Ann. Sc. Nat. (3) t. 20, 1853, p. 178; P. chabrus Miers, Cat. Crust. New Zealand, 1876, p. 45; Ann. Mag. 

 Nat. Hist. (5) V. I, 1878, p. 152; Haswell, Cat. Austral. Crust., 1882, p. in; Filhol, Miss, ile Campbell, t. 3, prt 2, 1885, p. 393; 

 Miers, Rep. "Challenger", Brachyura, i886, p. 273, pi. 22, i. \d (cheliped); P. capensis Stebbing, S. A. Crust., prt 3, 1905, p. 47; 

 P. toinentosa Stimpson, Smithson. Inst., Miscell. Coll., v. 49, 1907, p. 122: P. chabrus Stebbing, S. A. Crust., prt 5, 1910, p. 322; 

 Kathbun, Proc. U.S. Nat. Mus., v. 38, 1910, p. 591: /'. capensis Stebbing, Transact. Roy. Soc. Edinburgh, v. 50, prt 2, 1914, p. 267, 

 pi. 2.6c (maxillipeds); P. chabrus Borradaile, Brit. Antarct. ("Terra Nova") Exp., Zool., v. 3, n" 2, 1916, p. :oi. Hab. Cape of Good 

 Hope, Natal, Australia, Tasmania, New Zealand, Tongatabu, Juan Fernandez and Chile. 



3) Faun. Japon., Crust., 1835, p. 58, pi. 8, f. 1 ; H. Mii.ne-Edwards, Ann. Sc. Nat. (3) t. 20, 1853, p. 178; Stimpson, Proc. 

 Ac. Nat. Sc. Philadelphia, 1858, p. 103; Ort.mann, Zool. Jahrb. Syst., Bd 7, 1894, p. 731; Rathbu.n, Mem. Mus. comp. Zool. Harvard 

 Coll, V. 35, n" 2, 1907, p. 36. Hab. Japan and Easter Island. 



129 

 SIBOnA-EXPF.DITIE XXXIXr. '7 



