(i22 I'AdK SKOC.SHKlUl 



r p p (■ r 1 i p: — Tho part botwocn the combs on tlif poslcro-vcntnil odfTO of this lip 

 is slifihtlv coiuavi', about tho same as in my tig. 37 of I!, si/mmetricn. The j) a r a <i n a t c s 

 are about the same as in the hitter species. 



K e ni ale: — 



Shell: — Length: Aeeonling to (J. W. Ml'lli;!:, UMiGa, this is l.G— 1,8 mm. ((!. ClaUS, 

 1891 a, gives a length of 1,4 — 1,5 mm., luit m.ikrs iki distinction between males and females 

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

 JA'ngth : height about 2.5 : 1; length : breaiith about 1} : 1. in other respects we find about. 

 the san\e tvpe 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 tin' shell, when seen Inmi the 

 si<le, is somewhat higher than in the male; among the specimens investigated by uie. howe\er. 

 there was none that was .so high posteriorly as the type reproduced by (!. W. Mdl.MlK, 1906 a. 

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

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



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

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

 the first joint there are a large immtier nf velli)wisli-bro\vii corpuscles (explained l)y some ])revious 

 writers as reduced eyes). 



S e c o n d a n t e n n a: — The protopodite is only slightly relatively shorter than that 

 of the male. The proportion between the length of the ])r()to])odite 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 tho male. The 

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

 than half the length of the g-bristle. These four bristles are of about the same type as in the 

 male. Between the h- and i-bristles there is an exc(>edingly short bristle, which is only perceptible 

 with very great magnification (Ri;icnHltT's ocular 4. LiOlTX's inuncrsion 7,2)- Tilosity: The 

 second endopodite joint is bare. 



The r o d - s h a p e (1 or g a n is (piite of the tyj)c found by C. ClaL'S and G. W. MdlJ.Ki;; 

 see the accompanying fig. 11. 



Synoni/m;. Rer/uirks: — It seems to me beyond all doubt that the form Paraconchoecia ohlonqa 



described by C. Claus, 1890 and 1891 a, is identical with the species dealt with by me abo\-c. 

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

 fairly full description given by this writer. It is true that a number of difierences 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 oblonga, V .VA\I^\, 1906, is 

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

 scription and the information given by me above. V. VAvra's statement that the capitulum 

 of the male rod-.shaped organ is bare („ganz kahl") is contradicted by this writer's pi. IT, fig. 2.S. 



