194 Gareinological Fauna of India. 



much produced laterally, on each branchial region ; and one, Cupid's 

 bow-shaped, along the posterior border. Besides these there are some 

 smaller islet-like excrescences, namely, on each side, a supra-ocular, 

 post-ocular, hepatic, and branchial. 



Between the supra and post-ocular excrescences, are set the small 

 squat little-movable eyes. 



Of the trunk-legs, the 2nd pair (i.e., first ambulatory legs) are the 

 longest, being very slightly longer than the chelipeds, and considerably 

 shorter than the carapace measured with the rostrum, but much longer 

 than any of the last 3 pairs of legs. 



In the female all the long joints, except the dactyli, and in the 

 male all except the dactyli and propodites, are strongly carinated 

 dor sally. 



The chelipeds are hardly stouter than the next pair of legs, except 

 as regards the palm in the male, which is broadened and somewhat 

 inflated. In neither sex are the short white polished fingers apposable 

 throughout. 



Male. Female. 



Length of carapace and rostrum ... 19' millim. ... 18*5 millim. 



Greatest breadth of carapace ... 12* ,, ... 13" ,, 



Length of rostrum alone ... 10'5 ,, ... 8*7 „ 



,, of 2nd pair of trunk-legs ... 15*5 ,, ... 15* ,, 

 Loo. Andaman Sea, 161 to 250 fathoms. 



This extremely elegant species has been figured for next year's 

 issue of " Illustrations of the Zoology of the ' Investigator.' ! 



Huenia, de Haan. 



Huenia, de Haan, Faun. Japon. Crust., p. 83 



Huenia, Miers, Journ. Linn. Soc, Zool., Vol. XIV. 1879, p. 648 ; and ' Challenger ' 

 Brachyura, p. 34. 



Carapace depressed, elongate-triangular in the male,* with the 

 lateral epibranchial angles produced ; sub-quadrangular in the female, 

 with two large foliaceous lobes (epibranchial and hepatic) on either 

 side : a small pre-ocular, but no post-ocular spine. Rostrum simple, 

 acute, vertically deep, laterally compressed. Abdomen in the male 

 seven-jointed ; in the female five-jointed ; with the fourth to the sixth 

 joints coaloscent. 



Eyes very small and almost immobile. 



* A small hepatic lobe is sometimes present in the male also, on either side. 



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