22 ZOOLOGY OP THE VOYAGE OF H.M.S. SAMA11ANG. 



c. Anterior margin of hinder legs but slightly keeled ; carapace rather elongated ; 

 forelegs slender ; inferior margin of front not so much produced as in the other varieties. 

 (Var. temiipes.) 



Hab. Eastern Seas ; Mindanao, China, Japan. 



;ja {Hiienia) Proteus, De Haan, Faun. Japon. p. 95. t. 23. f. 4-5 mas. (elont/ata) f. 6. &, b, femina 

 {keraldica.) 



M. De Haan appears to have had considerable difflcidty in defining the varieties of this 

 curious species, nor are we able to do more than add another variety to the two already indi- 

 cated. Whether at any time these varieties will be elevated to the rank of species, on the 

 discovery of a more extensive suite of specimens of different sexes and ages, remains for 

 future observers ; and, in the meantime, we furnish a more extended description of the 

 variety we have named tenuipes. 



3. HUENIA PROTEUS, Be Haan. Var. tenures. Tab. IV. Eig. 5. 



T/wrace longiore quain latiore, oblcmgo, trigonali, superficie superiore depress! et lsevi, duobus tuber- 

 culis in media linea paululum inter se distantibus ; lateribus duobus compressis lamellaribus lobis ; anteriore 

 antice rotundato, posterioribus ad margines Hberos truncatis. 



Fronte valde elongata, thoracem longitudine fere adsequante, ad latera ciliata rigidis incurvatis seti? • 

 lamella inferiore non tarn deorsum producta quam in H. proteo ; canthis productis in validam spinam ad 

 utrumque latus frontis antice directam. 



Chelis gracilibus, thoracem longitudine fere adsequantibus, secundo pari paullo crassioribus ; bracliio 

 subtrigonaH, uno tantum parvo tuberculo in superficie superiore, duobus in inferiore ; spina ad finem partis 

 superioris parva; in H.jjroteo autem duo sunt tuberculi supra et tria infra; et spina supra ad apicem 

 pervalida et maxima est ; carpo supra obtuso ; manu in superficie superiore carinata ; unguibus denticulatis ; 

 secundo pari pedum thoracem longitudine superante ; bracliio cylindrico nulla ad finem spina ; carpo paulu- 

 lum compresso ; manu dilatata infra in spinam vahdam ad apicem positam, crista setarum adornatam ; un- 

 guibus longis, marginibus inferioribus minutim denticulatis, setis intermediis ; bracliio quinti paris una 

 spina in media anteriore parte. 



Abdomine quinque articulis : quarto valde convexo in medio longitudinaliter impresso ; primo et 

 secundo rotundato in medio tuberculo. Femina adulta. 



Hab. Maria Orientalia. 



Carapace longer than wide, oblong, trigonal, upper surface flat and smooth, with two 

 tubercles in the median line a little distance apart ; sides with two compressed lamellar lobes, 

 the front lobes rounded anteriorly, the hinder lobes truncated at their free edges. 



Front very much elongated, nearly as long as the carapace ; ciliated at the sides with 

 stiff, incurved hairs, inferior lamella not so much produced downwards as in If. proteus ; 

 orbits produced into a strong spine on each side of the front, directed forwards. 



Fore-legs slender, nearly as long as the carapace, rather thicker than the second pair, 

 third joint less trigonal, with but one slight tubercle on the upper surface, and but two 

 tubercles on the under surface, the spine at the end of the upper part very small, whereas in 

 H. proteus there are two tubercles above and three below, and the spine at the apex above is 



