﻿COl'HI'ODA 22^ 



Description, f?. Size of female from Tlior St. 183 was S- mm; anterior division 67 mm.; uro- 

 .some 2 nnn. Wolfenden'.'^ .specimen.^ mea.snred (S mm. 



The liead has a low terminal crista with a dorsal spine directed forwards and downwards (PI. 

 VIII fig. 15 a). The rostrum is bifurcate with the spines directed downwards and backward.s, each 

 bearing terminally a .slender backwards curved filament. The shape of the body is like Wolfenden's 

 figure; the articulation between the head and first thoracic tergite, as well as between the fourth and 

 fifth tergites is well developed; the lateral corners are somewliat triangularly produced, are rounded 

 and possess a small tooth (PI. VII fig. 4 a). 



The (ibdoiiuii, which is about one third as long as the anterior di\ision, has a serrated seam 

 along the hinder margin of somites II — IV; the somites, especialh' the genital one, are all over covered 

 with short hairs or spines. The genital somite, which is a little longer than deep, is distinctly pro- 

 duced below; the receptaculum seminis is, as seen in fig. 4a, well developed. The fifth abdominal 

 somite is scarcely visible from above, the comparative length between the three first somites and the 

 furcal branches, which are wider than long, is 35, 22, 17 and 10. The St 2, at the base of which a 

 dorsal tooth is seen, is almost half as long as the body and twice as long as tiie other setae. 



The aiitriiiinlar, which scarcely extend to tlie end of the cephalo-thora.x, consist of 24 segments. 

 ".-Rsthetasken" are found in segments 2, 3, 5, 7, 9, 12, 14, 19 and 25, as well as in segments 18 and 21, 

 but here representing the distal seta. A proximal seta was found in segment 12 as well as in segments 

 14—18. The Sp. of segment 23 is well removed from the tip of segment (■ ;, — ' ; of its length), and 

 extends scarceh- to the end of segment 25. The segment 21 is 1-3 as long as segment 22. 



The endopodite of the antciiiiaf is two thirds as long as the e.xopodite; its second segment has 

 8 setae in the inner lobe and 6 in the outer lobe. The manducatory part of the iiitindihulac is long 

 and .slender, with fairly well developed teeth; the third basipodite, which is about as long as wide, 

 has three setae inwards; the second segment of the endopodite has 9 Sp. 



The Lob I of the inaxillulac is long and slender; the Li 2 has two long plumous setae, the 

 Li 3 has 4 setae, and the third basipodite has 4 Sa and i vSp. The Ri I has 3 setae, the Ri II lias 3, 

 of which one is ver\ delicate, and the Ri III has 4 setae. The exopodite has 10 .setae and two groups 

 of short spines on the anterior surface; the Le has 7 + 2 setae. 



The iiiaxilldr and iiinxillipi-ds have a ver\- characteristic structure, but are scarcely different 

 from Wo 1 f e n d e u's figure. 



The first pair of legs is like Wolfenden's figure; the segments are luoad, and the exopodite 

 has 3 segments with powerful outer setae: the endopodite has 3 fairl\- long spines on the posterior 

 surface; the exopodite has on the posterior surface of Re II at the base of Si five slender .spines, and at 

 the ba.se of Si I Re III two .spines. A glandular pore is foiuul beyond the middle in the outer margin 

 of Re III. The second pair of legs is like Wolfenden's figiu'e, but the segments are comparatively 

 longer; the first inner segment is produced into a fairh- long, somewhat rounded, spine; the armature 

 of the posterior surface is scarceh- different from Wolfenden's description. The St has the serrations 

 almost completely fused in the distal three fourtiis, ImU only fu.sed in the middle in the proximal fourth, 

 leaving a ba.sal fenestra free. vSmall glandular pores were found at the i)ase of vSe Re 1 and II, aiul 

 at the ba.se of Se i and 3 of Re III. The lliird pair of legs is in main features like \.\\ti foiirf/t pair; 



