TAKEN OFF NORTHUMBERLAND AND DURHAM. 217 



This is a very minute species, and only one specimen was 

 seen. It is in some respects very like Stenhelia hirsuta, 

 Thompson, but the antennules, mandible, caudal stylets, and 

 secondary antennal branch — which is distinctly two-jointed — 

 are very different. The specific name is given in recognition 

 of Mr. Meek's unwearied and very efficient services to the 

 marine Natural History and Fisheries of our district. 



Genus TETRAGONICEPS, Brady. 



Tetragoniceps bradyi, Scott (Plate V., figs. i-io). 



Tetragoniceps Bradyi, Scott, Tenth Annual Report of the 

 Fishery Board for Scotland, p. 253, Plate 9, figs. 19-32. 



Female. — Antennules nine-jointed (fig. 2) about as long as 

 the first cephalo-thoracic segment, first joint as long as the united 

 lengths of the five following joints, second produced into a 

 strong curved spine ; last joint equal to the conjoined length of 

 the three preceding ones : antennae bearing a small one-jointed 

 secondary branch. Posterior footjaws three-jointed (fig. 3), 

 slender, elongated, with a long slender terminal claw and two 

 or three marginal setae. All the swimming feet have a two- 

 jointed inner and a three-jointed outer branch ; inner branch 

 of the first pair (fig. 4) twice as long as the outer branch, its 

 proximal joint very slender, and four times as long as the 

 small distal joint. Second, third, and fourth pairs (figs. 5, 6, 7) 

 having the outer branches very much longer than the inner, 

 and increasing progressively in length from the second to the 

 fourth pair, the inner branches decreasing in a like ratio ; fifth 

 pair unusually large (fig. 8), enveloping the entire ovisac, ovate, 

 with crenulated margins which are sparingly setiferous, distal 

 extremity truncated : caudal stylets (figs. 9, 10) bulbously 

 dilated at the base, the inner margin of which is deeply 

 sinuous, and ends in one moderately long seta and a much 

 shorter external one. Length 077 mm. The male is un- 

 known. 



I have seen only one specimen of this interesting species, 

 the details of which are here figured so far as I have been 



