(►44 



TMiV. skoctShioko 



and ivpnxluri'il 1>\' (>. W . Mi l.l.i;K, IIHU; im Imili tlif iii;lil aiiil lilt antcnicu ilnrc arc cro.ss- 

 ridgos distully; llu- right clasping organ may or niav in it havo a low .small cliitinoiis vcnucac 

 on its proximal slcmk. Tlic li-, i- and j-bristlos aro suboqual and in most cases somewhat, 

 though only slightly, shorter than the f-bristk-; they are of about the same width as the f- and 

 g-bristles distally of their shafts and are bare; none of them has any traces of a shaft. 



Mandible: — Protopodite: C'oxale: The toothed edge on the pars incisiva 

 has from about nine to eleven teeth, of which the posterior ones are in a number of cases somewhat 

 more developed than in my fig. 16 of C. symmetrica. The distal tooth-list is of about the same 

 relative size and type as has Ixh'ii dcsc'rilicd for ('. oblonga above. The proximal tooth-list is 



of about the same relative 



' size and type as is described 



below for C. spiniroatris, but 



the teeth seem to be (jn an 



average somewhat, though 



only rather slightly, fewer. 



The part situated proximally 



of this tooth-list is also of 



about the same type as in 



the last-mentioned species. 



Basale: The six teeth on the 



distal edge of the endite arc 



fm-nished with rather fine 



serrate teeth. The single 



tooth on the outside of this 



endite is of about the same 



type and size as in my fig. 19 



of C. symmetrica; in most 



cases it is finely serrulated 



along the greater of both the 



posterior and the anterior edge; its point seems, however, to be smooth in most cases. The disto- 



medial bristle of this joint is in most cases somewhat longer than in most species of this genus. 



There isnoepipodial appendage. Endopodite: The first joint has only two 



posterior bristles, which have about the same position and relative length as in C. spinirostris. 



Maxilla: — This is of the same type as is described below for C. spinirostris. 



Fifth limb: — This is of about the type described on p. 630 above for C. degans, 



but in the specimens investigated by me there was never more than one tube-bristle dorsally 



of the short dorsal claw on tlie endopodite; in addition the shorter bristles in the ventero-distal 



group on the first exopodite joint were usually somewhat longer relatively than in the species 



just mentioned. 



Penis (see fig. 11): — This is very powerful, relatively high and distally rounded. It 

 has from about eight to thirteen transverse muscles in the distal half; distally of these there 



Fig. CXXl. — Conchoecia obtusata O. O. Sars, J. . — 11. Penis, seen lioiii 



outside (drawn as if it were semi-transparent); 260 X. 12. The point of this 



organ seen from outside; 833 X. (From a specimen from Slcafror Rak.) 



