PODOPHTHALMOUS CRUSTACEA. 61 



The basal joint of the external antennae ornamented with 

 two pointed spines. The chelipedes are stout; the anterior 

 margin of the meropodites armed with three spines, the 

 interspace of the two distal spines being smaller than the 

 space between the two posterior ones. The carpopodites 

 have four spines , one very stout spine on their inner angle 

 and three on the external surface. The chelae armed with 

 five spines, two on the internal and three on the external 

 edge of the upper surface. Ambulatory legs slender ; the 

 meropodites of the posterior legs more slender than in Gonios. 

 duhium Hofifm. , with a ridge on their outer surfaces and 

 the distal end of the inferior margin armed with a spine; 

 the penultimate joints ornamented with many minute teeth 

 on the inferior edge , the dactylopodites oval and elongate. 

 The abdomen of the male having the same shape as in 

 Gon. duhium Hoffm. 



Breadth of the carapace of the single specimen 30 m.m. 

 Length » » 21 m.m. 



We have received but a single male of this very charac- 

 teristic species , which may at once be distinguished by 

 the shape of its frontal and antero-lateral teeth. 



9. Paratelphusa tridentata M. Edw. and 

 two neio species of this genus. 



I have found in the carcinological collection of the Leydeu 

 Museum four labelled specimens oi Paratelphusa : 1". a Paratel- 

 phusa, from the Cape of Good Hope, bearing the name of Tel- 

 phusa senex Fabr., 2°. a Paratelphusa from Java under the name 

 of Telphusa tridens Fabr. , 3*^. another Paratelphusa with 

 the name of Telphusa triodon de Haan and 4". a fourth 

 Paratelphusa also from Java with the name of Telphusa 

 convexa de Haan. These four specimens are the numbers 

 147, 151, 152 and 153 of the catalogue of the Crustacea 

 of the Ley den Museum , published by Herklots in 1861 

 under the name of Symbolae Carcinologicae. ') 



1) Herklots, Symbolae Carcinologicae, Etudes sur la classe des Crustacés, 

 Leyde, 1861. 



X^otes from the Leyden Museunit 



