238 STALK-EYED CRUSTACEA 



without spine on the interior margin ; palm rounded 

 above ; fingers distally acute, and dentated on the inner 

 margins. Tlie walking legs are robust and somewhat 

 elongated, with the two terminal joints, and sometimes 

 the three last joints, compressed, and armed with spinules 

 in longitudinal scries. 



Range. — West Indian Islands, California to Brazil, 

 Australasia, Cape of Good Hope, West Africa, Island 

 of Ascension. 



Synopsis of the Species. 



A. No fissure or notch on the internal border of the 

 fourth joint of the external maxillipedes. 



a. Terminal joint of walking legs armed with four 

 rows of spines. — (G. lateralis.^ 



b. Terminal joint of walking legs armed with six rows 

 of spines. — {G. rnricola?) 



B. A fissure on the internal border of the fourth joint 

 of external maxillipedes. 



c. Terminal joint of walking legs armed with four 

 rows of spines. 



c^. Fourth joint of external maxillipedes oval. — {G. 

 depressus) 



d. Terminal joint of walking legs armed with six rows 

 of spines. 



<■/'. Fourth joint of external maxillipedes subquadrate. 

 — {G. p/aiiatus.) 



e^. Fourth joint of external maxillipedes subtriangular 

 with very rounded angles (except posterior external). — 

 {G. lagostODia.) 



