190 



" :ê tumidomanus (Paulson) 1875. 

 *Theophane de Man 19 10. 

 s 'hastilicrassus Cout. 1905. 

 '*hastilicrassus Cout. var. de Man 19 10. 

 *acanthitelsonis Cout. 1905. 



hululensis Cout. 1909. 



ancistrorhynchus de Man 1909. 



Paulsoni Nob. 1906. 



Paulsoni Nob. var. Rameswarensis Cout. 1908. 



III. Paulsoni group. 



Paulsoni Nob. var. Kurracheensis Cout. 1908. 

 Paulsoni Nob. var. liminaris Cout. 1908. 

 Mac-Cullochi Cout. 190S. 

 *gracilirostris de Man 19 10. 

 Mushaensis Cout. 1908. 

 hilarulus de Man 1910. 

 Latastei Cout. 1908. 

 tricuspidatus (Heller) 1861. 



*biunguiculatus (Stimps.) Cout. 1S98. 

 biunguiculatus (Stimps.) Cout. var. exilipes Cout. 1905. 

 brachyceros Nob. 1906. 

 'amabilis de Man 19 10. 

 lophodactylus Cout. 1908. 

 pachymeris Cout. 1905. 

 *bituberculatus de Man 19 10. 

 bispinosus de Man 19 10. 

 'triacanthus de Man 19 10. 



IV. Biunguiculatus group. 



'*quadridens de Man 1910. 



quadrispinosus de Man 19 10. 

 ■'trispinosus de Man 19 10. 

 'septemspinosus de Man 19 10. 

 *neptunus (Dana) 1852. 



Theano de Man 19 10. 



laticeps Cout. 1905. 



Antenor de Man 19 10. 

 'Tescadorensis Cout. 1905. 



? Haddoni Cout. 1900. 



V. Laevimanus group. 



Sladeni Cout. 1908. 



Key to the indopacific species and varieties of the genus Synalphetts. 



Comatularum group. 



#j Merus of the third and the fourth pair of legs with an acute tooth 



at the distal end of the lower margin. 



ó l Dactylus of the small chela not shorter than the palm, curved like 



a hook and longer than the immobile finger. Rostrum very long, 



reaching nearly the end of the antennular jDeduncle Comatularum (Hasw.) 



(W. A. HASWELL, Catal. Australian Stalk- and Sessile-eyed Crustacea, 1882, p. 189. 

 E. J. Miers, Report Zool. Coll. H. M. S. "Alert", 1884, p. 289. C. Spence Bate, 

 Report Challenger Macrura, 18S8, p. 574, PI. CIII (Synalpheus falcatus)). 



b„ Fingers of the small chela much shorter than the palm, about half as long. 



c x Telson with the anterior pair of spinules situated behind the middle, 



close to the lateral margins. 



d x Front not very prominent, rostrum reaching to the middle of 



the 2 nd or the 3 rd antennular article; lower spine of basicerite 



as long as the supra-orbital spines; spinules of the upper surface 



of the telson large, 0,42 mm. long, anterior pair just behind 



the middle amèoinae (Zehntner) 



d„_ Front very prominent. 



58 



