TO INDIA \ CARCINOLOGY. 375 



113. GoNiosoMA ANNTJLATUM (Fabr.). 



G. annulatnm (Fabr.), A. Mihie-Echvards, Nouv. Arcli. Mus. Hist. Nat. t. x. p. 371 (1861). 



( = G. orUntale, Heller) . 



Kameswaram and Tuticorin (T/mrstoii) ; Madras (J. B. R.). 



In all the specimens violet rings arc present on the legs. Miers regarded G. se.vdeii- 

 tatiim, (lUipp.) as scareely distinet from this species, and, according to De Man, G. annn- 

 lahim is itself perhaps merely a younger state of G. luci/erum ; but the size of a 

 Rameswaram specimen scarcely confirms this, for tlic carapace is 54 mm. long and 

 77 mm. broad, the left hand GO mm. aloiii;' its lower border. There can be little doubt, 

 however, that a revision of the genus Goiiiofsonia, foimded on the examination of a large 

 series of specimens from different localiti(>s, would result in the union of several of the 

 species as at present constituted. 



Distribution . From Madagascar to the Malay Archipelago. 



114. GoNiosoMA Helleeii, a. Milne-Edw. 



G. Helkrii, A. Milne-Edwards, Bull. Soc. Entom. France, t. vii. p. 282 (1867). 

 G. merguiense, De Man, Mcrgui Crust, p. 82, pi. v. figs. 3, 4 (1887). 



Tuticorin {Tlmrstoii) ; Ceylon {Saly) ; Rameswaram {J. B. H.). 



These specimens are identical with (r. mergniense, but De Man has recently 

 pointed out, in his Report on tlie Decapoda collected in the Malay Archipelago by 

 Dr. 'Brock, that this species is probably identical with G. Helkrii, and the descriptions of 

 the two certainly agree. G. spiniferwn, Miers, from Queensland, is closely allied, but 

 difli'ers in having the posterior margin of the penultimate joint of the sAvimraing-feet not 

 denticulated. G. Ilellerii is distinguished from G. lucifcrum and G. anmiluttim by the 

 form of the antero-latcral teeth, the last of which is always longer than the others ; the 

 carpal joints of the swimming-legs have an acute spine on the under surface, and m 

 adults both the nntero-lateral and the frontal teeth are very acute. 



An adult male I'rom Tuticorin is 3S mm. long and 52 mm. broad, the right hand 

 48 mm. long. 



Distribution. New C'alodonia {A. MiJnc-L'dwards); Mergui, Amboina (Dc 3Ian). 



115. GONIOSOJIA ERYTHRODACTYLUM (Laui.j. 



G. fnjthroddchjlum (Lain.), A. Milue-Edwards, Nouv. Arch. Mus. Hist. Nat. t. x. p. 369 (1861). 



Ceylon [Haly). 



Distribidioii. Red Sea {De Man) ; Marquesas Islands and Moluccas {A. Milne 

 Edwards). 



IIG. GoNiosoMA ORiKNTALK (Dana). 



CImrijbdis orientalis, Dana, Crust. U.S. Explor. Kxpcd. [it. 1, p. 285, pi. xvii. tig. 10 (1852). 

 G. oriciitale (Dana), A. Miluc-Edwards, Nouv. Arch. Mus. Hist. Nat. t. x. p. 383 (1861). 



{=(!. diibium, Hoffmann). 



Tviticorin. six specimens [Thvrslon) ; Ceylon (Hdli/). 



54* 



