148 COPEPODA. 



inner produced portion of the basal joint narrowly subtri- 

 angular with the apex bluntly rounded and reaching to about 

 the middle of the secondary joint ; the inner margin bears 

 three setae, the two upper are short and of nearly equal 

 length, but the lower one is longer ; the two apical setae are 

 of unequal length and rather slender. The secondary joint 

 is moderately elongated, being fully twice as long as broad, 

 it is broadest near the proximal end and tapers gradually 

 to the truncate and somewhat angular apex ; a small seta 

 springs from near the distal end of the inner margin and two 

 of moderate length from the truncate end ; there are three 

 small setae on the lower half of the outer margin, the one 

 nearest the distal end, which is the smallest of the three, is 

 provided with a peculiarly thickened base, as shown by the 

 drawing (PL XI. fig. 4). 



The furcal joints are very short. 



No males of this form have been observed. 



Habitat. Salcombe, collected 1875. 



PARASTENHELIA ANGLICA, Norman & T. Scott. (Pis. X. 



figs. 10, 11 ; XIII. figs. 4, 9 ; XIV. fig. ; XVI. fig. 4 ; 

 XVII. fig. 4 ; XXI. fig. 2.) 



190o. Parastenhelia anglica, Norman & Scott, Ann. & Mag. Nat. 

 Hist. ser. 7, vol. xv. p. 289. 



Description of the female. The form of this species bears 

 a close resemblance to that of some species of Stenhelia ; the 

 body, which is moderately stout, tapers slightly towards the 

 posterior end ; the rostrum is narrow and elongated, and the 

 furcal joints are very short (PI. XIII. fig. 4). The specimen 

 represented by the drawing measures *65 mm. in length 

 (about 4*0 of an inch). 



The antennules, which are moderately stout and elongated, 

 are composed of nine joints ; the first four joints are together 

 more than twice the entire length of the remaining five joints; 

 the second joint is considerably longer than the third or 

 fourth, which are subequal; all the other five joints are small, 

 but the terminal one is nearly as long as the two preceding- 

 joints taken together (PL XXI. fig. 2). The proportional 

 lengths of the various joints are shown approximately by 

 the formula : 



Proportional lengths of the joints 25 . 46 . 34 . 34 . 13 .10.8.0.16 

 Numbers of the joints 1 2 3 4 5 6 7~~8 9 



The secondary branches of the antennae are three-jointed 

 and moderately elongated, and the middle joint is about as 

 long as the end one (PL X. fig. 10). 



