CRUSTACEA. 29 



Hind-legs small, thin, feeble, smooth, the upper edges obtuse ; claws long, sharp, flat- 

 tened, and fringed with woolly hair. The body and fore-legs of a light brown colour, 

 marked with rathei' large, faint-red blotches. 



Hab. Philippine Islands. 



This species is very closely allied to Part/ienqpe [Lambrus) diacantha, De Haan 

 (E. J. Tab. xxiii. Fig. 1.), but it differs from that crustacean in the greater comparative length of 

 the fore-legs ; in the fifth joint having intermediate small spines between the five larger ones, 

 which latter, moreover, are different in form ; and in having but two spines on either side, 

 extending from the postero-lateral margins of the carapace, whereas in Parthenope (Lambrus) 

 diacantha, there are three on either side. 



The Lambri are extremely sluggish in their movements, relying for safety not in mus- 

 cular force, but in the disguised nature of then' bodies, which, owing to their similarity to the 

 gravelly floor on which they are generally found, must afford a protection from their enemies. 

 Many species appear, indeed, at first sight to be made up of a conglomerated mass of small 

 stones and sand. The Lambri are very numerous throughout the China Sea, where they live 

 in about twelve or twenty fathoms, upon the submerged beds of broken shells and muddy 

 gravel which constitute the floor of that sea. 



6. LAMBRUS LACINIATUS, Be Kami. 



Tkorace multo latiore quam longo, rnargine laciniato, manibus carina externa et media 15-17 spinis, 

 conicis validis granulatis armatis, carina interna tuberculatis ; fronte in spinam basi dilatatarn producta, 

 pedum posteriorum tibiis tarsisque margine superiore acuto-carinatis. 



Hab. Japoniam. 



Carapace much wider than long, the margin laciniated ; fifth joint of fore-legs with the 

 external and middle keels armed with from fifteen to seventeen strongly-granulated conical 

 spines ; internal keel tuberculated ; front produced into a spine dilated at the base ; fourth 

 and fifth joints of hind legs acutely carinated on the upper margin. 



Hab. Japan. 

 Lambrus laciniatus, De Haan, Faun. Japon. 



7. LAMBEUS VALIDUS, Be Haan. 



Tliorace multo latiore quam longo, tuberculis fragiformibus ecliinato, margine laciniato; manibus 

 carina externa et media spinis 11-12 conicis validis granulatis armatis, interiore vix tuberculatis; fronte in 

 spinam angustam producta; manibus carina media tuberculis 12 armatis; pedum posteriorum tibiis 

 tarsisque margine superiore obtusis. 



Hab. Japoniam. 



Carapace much wider than long, covered with fragiform tubercles, margin laciniated, 

 external and middle keel of the hands armed with eleven or twelve strongly granulated 

 conical spines, inner keel scarcely tuberculated, front produced into a narrow spine ; the 



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