6 ZOOLOGY OF THE VOYAGE OF H.M.S. SAMARANG. 



Horns of the front bent outwards, the upper part of the orbits four-spined. 



In Japanese Sima-Gani, or insular Crab. 



Hab. The eastern shores of Niphon ; Japan. 



Inacliiis (Maorocheira) Kampferi, De Haan, F. J. p. 100. t. 25. (mas.) t. 27 et28 (femina) ; Rsempfer, 

 Beschr. von Japan. 1. p. 158. torn. 14. A. (Brac/dum maris adulti). 



6. CAMPOSCIA, Latreille. 



1. CAMPOSCIA RETUSA, Latreille. 



Thorace fere dimidio longiore quam latiore, fronte latissima, truncata, desinente in duobus parvis 

 tuberculis quse ad basilarem articulum antennarum exteriorum fere pertinent ; dente validissimo ad partem 

 lateralem thoracis, spatio satis magno post oculos ; pedibus prioribus cylindricis, digito parum vabdo desinen- 

 tibus, paululum introrsum curvatis, ad margines denticulatis, cavis punctis in sulco, tertio pedum pari 

 ferme dimidio longiore quam corpus. 



Hab. Insulas Philippinas. 



Carapace about as long again as wide, front very wide, truncated, and terminating in 

 two little tubercles which nearly extend as far as the basilar joint of the external antennas ; 

 a very strong tooth on the lateral part of the carapace at some distance behind the eyes. 



Fore-legs cylindrical, terminated by a weak pincer, slightly curved inwards, denticulated 

 at the edges with hollow puncta in the groove, the third pair of legs nearly twice as long as 

 the body. 



Hab. Philippine Islands (Guimaras) ; Cuming. 



Camposcia retusa, Latr. R. Anim. t. 4. f. 61; Guerin. Icon. t. 9. f. 1 ; Edw. Crust, t. 1. p. 283. 

 t. 15. f. 16. 



The Camposcia retusa, in its young state, has the carapace smooth and shining, and the 

 legs, which appear rather slender, are but slightly tomentose ; as it advances in life, the 

 carapace and legs become covered with a thick, woolly, yellowish-brown tomentum, and, in 

 advanced age, the entire animal is concealed by a covering of Sponges, Corallines, Algae, 

 Actinias, and Alcyonia, beneath which it is impossible to recognise the species. The dissimilar 

 aspect presented by this species, under these various conditions, is splendidly illustrated by 

 a suite of specimens in the collection of the British Museum. 



The species is widely distributed, and the materials with which their bodies are covered 

 appear to depend upon the localities in which they are found. Specimens from the Mauritius 

 are covered with fine corallines and algae, while those from the Philippines are concealed 

 altogether by stones and sponges. 



7. EGERIA, Latreille. 



1. EGERIA INDICA, Latreille. 



Interiore margine tertii articuH maxillarum exteriorum recto, et ad angulum prominente. 



Hab. Oceanum Indicum. 



