622 TAGE SKOGSBERfi 



Upper lip: — The part between the combs on the postero-veutral edge of this lip 

 is slightly concave, about the same as in my fig. .37 of C. symmetrica. The p a r a g n a t e s 

 are about the same as in the latter species. 



Female: — 



Shell: — Length: According to G. W. Muller, 1906 a, this is 1,6—1,8 mm. (C. Clalis, 

 1891 a, gives a length of 1,4 — 1,5 mm., but makes no distinction between males and females 

 in this respect.) The lengths of the specimens investigated by me varied between 1,5 and 1,8 mm. 

 Length : height about 2,5 : 1; length : breadth abf)ut 3 : 1. In other respects we find about 

 the same type as in the male, both when seen from the side and from beneath; it is, however, 

 to be noted that the shoulder vault is not quite so powerful and the shell, when seen from the 

 side, is somewhat higher than in the male; among the specimens investigated by me, however, 

 there was none that was so high posteriorly as the type reproduced by G. W. MIIi^IjEK, 1906 a. 

 The spine on the postero-dorsal corner of the right valve is not bounded off from the posterior 

 margin of the shell by a distinct angle; see fig. 5. In other respects it resembles the male. 



First antenna: — This is of the type described by G. W. MtlLLER. The bristle 

 of the second joint has exceedingly fine, short hairs, almost bare. All the joints are bare. In 

 the first joint there are a large number of yellowish-brown corpuscles (explained by some previous 

 writers as reduced eyes). 



Second antenna: — The protopodite is only slightly relatively shorter than that 

 of the male. The proportion between the length of the protopodite and that of the e x o p o- 

 d i t e is about the same as in the male. E n d o p o d i t e: This has three joints; the little 

 end joint is clearly defined. The g-bristle is slightly relatively shorter than in the male. The 

 f-, h-, i- and j -bristles are subequal or differ only slightly in length; they are somewhat more 

 than half the length <jf the g-bristle. These four l>ristles are of about the same type as in the 

 male. Between the h- and i-bristles there is an exceedingly short bristle, which is only perceptible 

 with very great magnification (Ri^i»:hei!'|''s ocular 4, Li^TZ's immersion Vi2)- Pilosity: The 

 second endopodite joint is bare. 



The r o d - s h a p e d o r g a n is quite of tlic type found by V. Claus and G. W. MdM.ER ; 

 see the accompanying fig. 11. 



Stjivmym^. Remarks: — It seems to me beyond all doubt that the form Paraconchoecia oblonga 



described by C. Claus, 1890 and 1891 a. is identical with the species dealt with by me above. 

 Almost entire agreement was observable between the specimens investigated by me and the 

 fairly full description given by this w^riter. It is true that a number of differences can 

 be observed, e. g. with regard to the e-bristle of the female first antenna and the fifth and 

 sixth limbs, but these differences seem certainly to be due to the somewhat superficial nature 

 of this author's description. 



Nor does there seem to be the least doubt that Conchoecia nblomid, V .VA\[iA, 1906, is 

 identical with this species. An almost detailed agreement is found between this author's de- 

 scriptit)n and the information given by me above. V. VAvra's statement that the capitulum 

 of the male rod-sha]ied organ is bare (,.ganz kahl'') is contradicted bv this writer's ])1. TI. lig. 23. 



