G08 ME. E. J. MIEES ON THE 



in Crypiopodia, and tlie form of the anterior legs in certain forms 

 (e.g. CEthra), in wliicli they are capable of being closely applied 

 to the body. On tlie other hand, tlie structure of the orbits and 

 position of the basilar portion of the antennte very nearly re- 

 sembles that of certain Cancroid genera, as Filumnus and Tra- 

 pezia. The Parthenopidse are related, as already stated, with 

 the typical Oxyrhyncha through Inachoides and Inachus. 



Subfamily 1. Parthenopin^. (See Plate XIII. figs. 9, 10, 11.) 



Carapace equilaterally or transversely triangular or elliptical. Rostrum 

 simple. A strongly marked depression separating the branchial from the 

 cardiac and gastric regions. Anterior legs greatly developed, with the 

 palm trigonous, fingers acute. 



§ Carapace not laterally expanded. 



Lambeus, Lectcli. (Plate XIII. fig. 9.) Carapace equilaterally 

 triangular, with the regions convex, tuberculate. Basal antennal 

 joint short and not reaching to the front, the inner orbital hiatus 

 usually occupied by the second joint, which is longer than or as 

 long as the first. Anterior legs with a tuberculated or spinose 

 crest along the upper margin of the palm. Anterior legs usually 

 very long. Ambulatory legs very short, smooth or minutely 

 spinose. Type Lanxbrus lonyimanus (Linn.). 



Paetuenope, Falricius. Carapace equilaterally triangular. 

 Basal antennal joint longer than the second, but not reaching 

 the inner orbital hiatus. Anterior legs rather compressed, tuber- 

 culated, but not cristated. Ambulatory legs longer, with long 

 spines. Type Farthenope horrida (Linn.). 



Scarcely distinct as a genus ; but it appears better to retain it 

 as a designation for the single species P. horrida, than to unite 

 it with Lamirus, when the rule of priority would compel the 

 adoption of the generic term JPartJienojpe for all the numerous 

 species of the former genus, which have been universally desig- 

 nated as species of Zambrtcs. 



* SoLEKOLAMBETJS, Stimpson. Carapace pentagonal, smooth, 

 convex, with the margins acute. Eostrum short and blunt, or 

 faintly tridentate. Basal joint of antennae about as long as the 

 second, Pterygostomian regions ridged as in Heterocrypta. An- 

 terior legs nearly as in Lamlriis. Ambulatory legs slender, com- 

 pressed. Type Solenolamlrus typicus, Stimpson. 



