190 



■*tumidomanus (Paulson) 1875. 

 *Theophane de Man 1910. 

 *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 ^oup. 



Paulsoni Nob. var. Kurracheensis Cout. 1908. 

 Paulsoni Nob. var. liminaris Cout. 1908. 

 Mac-CuUochi Cout. 1908. 

 ■gracilirostris de Man 1910. 

 Mushaensis Cout. 1908. 

 "hilarulus de Man 19 10. 

 Latastei Cout. 1908. 

 tricuspidatus (Heller) 1861. 



IV. Biiinguiculatiis group. 



*biunguiculatus (Stimps.) Cout. 1898. 



biunguiculatus (Stimps.) Cout. var. exilipesCout.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. 



■quadridens de Man 19 10. 

 ■quadrispinosus de Man 19 10. 

 *trispinosus de Man 19 10. 

 *septemspinosus de Man 19 10. 

 *neptunus (Dana) 1852. 

 *Theano de Man 1910. 

 laticeps Cout. 1905. 

 *Antenor de Man 19 10. 

 'Tescadorensis Cout. 1905. 



? Haddoni Cout. 1900. 



V. Laevivianus group. 



I Sladeni Cout. 1908. 



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



Comatulartcm group. 



a^ Merus of the third and the fourth pair of legs with an acute tooth 

 at the distal end of the lower margin. 

 b^ 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 peduncle Comahdartim (Hasw.) 



(W. A. Haswell, Catal. Australian Stalk- and Sessile-eyed Crustacea, 18S2, p. 1S9. 

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

 Report Challenger Macrura, 188S, p. 574, PI. CIII (Synalplieus falcatJts)). 



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



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



close to the lateral margins. 



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



the 2°^^ or the -^^^ 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 aviboinae (Zehntner) 



d„ Front very prominent. 



58 



