1 D O T M I D E A. 705 



mum articulum basalem externarum vix attingentes. Abdomen an~ 

 gusib oblongum (plus duplo longius quam latum) extremitate triangu- 

 lafum el subacutum, marginibus later alibus paulo excavatis. Pedes 

 infra parce hirsutL 



Narrow, front excavate, head a little transverse. Epimerals very 

 small. Outer antennae about half as long as body, flagellum shorter 

 than the base, ten-jointed, naked. Inner antennae hardly reaching 

 to penultimate basal joint of outer pair. Abdomen narrow oblong 

 (length more than twice the breadth), triangulate at extremity and 

 subacute, lateral margins a little excavate or concave. Feet 

 sparingly hirsute below. 



Plate 46, fig. 7 ci, animal, enlarged two diameters ; 6, part of leg of 

 seventh pair. 



New South Wales, Australia- 

 Length of body, 0*86 inch ; breadth, 0*17 inch; ratio, 5 : 1. This 

 narrow species has the epimerals occupying only part of the margin 

 of each segment. The abdomen is longer than half the cephalothorax. 

 The surface is not distinctly granulate. 



Genus EPELYS, Dana. 



Antenna? breves, subcequai; externa? non geniculate, fiagello non confectm. 

 Pedes subwquales, quartl tertiis vix breviores. Oculi minuti, remoti. 



Antennae short, subequal, outer not geniculate and without a flagel- 

 lum. Feet subequal, the fourth pair differing little in size from the 

 third. Eyes minute, remote. 



The only species of this genus seen by the author was of very 

 small size, and occurred upon the upper surface and imbedded among 

 the tentacles of an Asterias. From its form and the minute eyes, it 

 was evidently not the young of an Idotaea, as might have been in- 

 ferred from the tentacles ; and even the tentacles are peculiar, since 

 in young Idotaeae they are still very unequal in length, as in adults, 



177 * 



