80 AMPIIIPODA NOnMALIA. 



slender ; cpistomo pointod. First pair of gnatliopoda having the 

 carpus as long as the propodos ; the inferior margin of both 

 continuous, and parallel with the superior ; palm scarcely oblique. 

 Second pair of gnathopoda having the carpus and propodos sub- 

 equal in length and diameter, cylindiieal, having the long hairs 

 forked; dactylos nidimcntary. The squamiform coxae of both 

 pairs of gnathopoda upon the inferior margin near the posterior 

 angle developed into a tooth, caused by a small depression, from 

 which a solitary hair is developed. Bases of pereiopoda not 

 serrated. Posterior margin of the third segment of the pleon 

 deeply concave. Posterior pair of pleopoda having the rami not 

 longer than the base. Telson deeply cleft, laterally armed with 

 three spines upon the upper surface and three upon the flattened 

 apex of each di^ision. 

 Length about ^-ths of an inch. 



The description and figau-e are taken from specimens procured in 

 the Moray Frith by the Rev. G. Gordon, and near Banff by Mr. 

 Edward. In Kroyer's figure the inferior antennae are not so pro- 

 portionately long, but in all other respects the agreement is such 

 that they cannot be considered other than of the same species. 



18. Anonyx Fuegiensis. (Plate XIII, fig. 6.) 

 Anonyx Fuegensis, Dana, U. 8. JExploK Exped. p. 919. pi. 62. fig. 4. 



*' Eyes reniform. Superior antennae hardly half as long as inferior 

 pair ; second and third joints of base very short ; flageUum longer 

 than base, seven- or eight-jointed. Inferior antennae about half 

 as long as body ; base short ; joints of flageUum hardly oblong 

 (excepting near apex). Both paii's of gnathopoda quite small, 

 similar, the fii'st pair a little the smaller. Propodos very small, 

 oblong, oblique at apex ; dactylos minute. First and second pairs 

 of pereiopoda equal, the setae very short, those of the propodos 

 much shorter than breadth of joint ; fifth and sixth pairs nearly 

 equal, basos broad and serrulate behind, setae veiy short. Last 

 segment of pleon oblong, emarginate. 



" Length one-thii-d to half an inch. 



" Hah. Good Success Bay, Tierra del Fuego. Collected in eight 

 or ten feet water, being brought up on meat set as bait by Lieut. 

 Underwood. ' ' — Dana. 



19. Anonyx politus. 



Anonyx politus, Stimjjson, 3Iarine Invert, of Grand Manan, p. 50. 



" Elongated, broad and rounded above, but ^\'ith less height than is 

 usual in Anonyx. Ccphalon small, tumid, \\\i\i the eyes sub- 



