22 
ZOOLOGY OP THE VOYAGE OF H.M.S. SAMARANG. 
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. tenuipes.) 
Hab. Eastern Seas ; Mindanao, China, Japan. 
Maja ( Euenia ) Proteus , De Haan, Farm. Japon. p. 95. t. 23. f. 4-5 mas. {elongata) f. 6. a, b, femina 
(heraldica.) 
M. De Haan appears to have had considerable difficulty 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, De Ilaan. Var. tenuipes. Tab. IV. Eig. 5. 
Thorace lougiorc quam latiore, oblongo, trigonali, superficie superiore depress!! et lrevi, duobus tuber- 
culis in media, linen paululum inter se distantibus ; lateribus duobus compressis lamellaribus lobis ; anteriore 
autice rotundato, posterioribus ad margines liberos truncatis. 
Fronte valde elongata, thoracem longitudine fere adeequante, ad latera ciliata rigidis incurvatis setis • 
lamella inferiore non tam deorsum product! quam in II. proteo ; cantliis productis in validam spinam act 
utrumque latus frontis antice directam. 
Ckelis gracilibus, thoracem longitudine fere adsequantibus, secundo pari paullo crassioribus; braehio 
subtrigonali, uno tantum parvo tuberculo in superficie superiore, duobus in inferiore ; spina ad finem partis 
super i oris parva; in II. proteo autem duo sunt tuberculi supra et tria infra; et spina supra ad apicem 
pcrvalida et maxima est ; carpo supra obtuso ; manu in superficie superiore earinatft ; unguibus denticulatis ; 
secundo pari pedum thoracem longitudine superante ; braehio cylindrico nullfi ad finem spina ; carpo paulu- 
lum compresso ; manu dilatata infra in spinam validam ad apicem positam, crista setarum adornatam ; un- 
guibus longis, marginibus inferioribus minutim denticidatis, setis intermediis ; braehio quinti paris una 
spinel in niedifi anteriore parte. 
Addomine q uinque articulis : quarto valde convexo in medio longitudinaliter impresso ; primo et 
secundo rotundato iu medio tuberculo. Eemina 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 H. 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 
FI. proteus there are two tubercles above and three below, and the spine at the apex above is 
