406 On a new S;pecies of Talitrus from Rodriguez. 



obiiqua, imo recurva, in margine postico valde sinuata ; margo 

 valvarum eardinalis rectus ; margarita pulcherrime iridescens, a 

 limbo fusco-purpureo, antice pallidiore, posticeque^latiesimo 

 cincta. 

 Long. max. 55 mill., diam. 35. 



(Coll. by Slater.) 



Comatula tndtca, sp. n. 



Rays thirty ; disk small, convex, subpentagonal ; dorsal 

 cirri ?, probably about forty-tive ; radialia two, the axil- 

 lary radiale without a syzygium ; between this and the next 

 bifurcation are two joints ; and after two more segments the 

 two innermost arms bifurcate ; none of the brachial axillary 

 joints has a syzygium ; eveiy third segment above all the 

 axillaries with a syzygium ; and on the arms beyond these the 

 syzygia are at very unequal distances, the first one being sepa- 

 rated by as many as twenty joints, but generally by about 

 fourteen ; then nearer the extremity of the arms they are rather 

 more proximate, there being from six to ten intermediate joints. 

 The second pinnulse very long, and composed of much-elon- 

 gated joints. Colour pale purplish brown, with the sutures 

 of the arm-joints blackish brown. Length of rays about 

 6 inches (153 mill.) ; diameter of disk 6 mill. 



(Coll. by Mr. H. H. Slater.) 



The disk is covered with deep little pits, about forty-five in 

 number, which have been the sockets of the dorsal rays. The 

 second pinnulae, which are conspicuously long (about 17 mill.), 

 are situated on the first and second joints, above these, which 

 always have a syzygium — or, in other words, on the fourth and 

 fifth segments, above the axillaries. 



XLVI. — Description of a new Species of Talitrus from 

 Rodriguez. By Edward J. Miers, F.L.S. 



Talitrus Gulliveri^ sp. n. 



Slender, smooth, with the buccal organs considerably pro- 

 jecting, as in T. locusta. Superior antennse scarcely as long 

 as the cephalon, and about reaching to the extremity of the 

 second joint of the inferior antennse, with seven joints ex- 

 posed ; the basal very short, the two next longer, subequal, 

 together about as long as the four terminal joints, of which 

 three are equal and the last minute. Inferior antennas slender, 

 not as long as the pereion, with the basal joint of the peduncle 

 very short, the second joint more than half the length of the 



