CALCINUS INTERMEDIUS. "103 



which is separated from the upper margin by a distinct 

 groove, quite as appears to be the case with the Calcinus 

 rosaceus. The larger (left) hand scarcely compressed , its 

 outer surface rather convex , upper margin rounded , quite 

 unarmed, under margin rather acute and provided with a 

 ridge of granules ; fingers nearly as long as the palm , 

 slightly arcuated , leaving an hiatus when closed , their 

 inner margins on the external side somewhat crenulated 

 near the base , and provided with some hairs more inter- 

 nally ; outer and inner surface of the palm quite smooth , 

 the latter with some hairs near the articulation of the fin- 

 gers , that are slightly excavated at the ends and mi- 

 nutely punctate. Arm of the right chelipede shaped as that 

 of the left, carpus with an acute upper margin that is 

 armed with two or three obsolete spines but terminates 

 in a distinct spine; its outer surface rather little convex 

 and smooth. Hand much compressed , upper margin cris- 

 tate and armed with five acute spines , under margin 

 rounded , fingers very short , with excavated tips , upper sur- 

 face of the mobile finger rounded and armed with some 

 small spines placed biseriately ; outer surface of the palm 

 and of the fingers covered with some few hairs. — Am- 

 bulatory legs of the second and third pair a little longer 

 than the larger (left) 'chelipede; tibia of the second pair 

 armed with two spines, a larger and a smaller one, on 

 the anterior margin, tibia of the third pair only with one 

 spine ; tarsi scarcely shorter than the penultimate joints , 

 armed with a series of minute spines on their inferior 

 margin, claws rather curved: — the two last joints of 

 these legs being provided with some scattered tufts of 

 hair both on their upper and under surfaces. 



As regards the coloration of our specimen (preserved in 

 spirits), it is of a light rose colour, more especially pro- 

 nounced on the anterior part of the carapace, and on the 

 meri and carpi of the legs; the anterior margins of the 

 meri and of the carpi of the chelipedes are coloured bluish, 

 the larger hand entirely of a white colour except the bluish- 

 Notes froin the Leyden IMuseuiu, "Vol. III. 



