studies on marine Ostracods 



(iUt 



and fine distally pointing spines, about the same as are shown in pi. IX, fig. 7 in G. W. MCller's 

 work, 1906 a; this row of spines is sometimes divided into two. The d-bristle has at the corre 

 spending place a sparse row of similar spines. None of these three bristles have pad-like form- 

 ations. The a-bristio is about as long as or somewhat longer than the total length of the foui- 

 distal joints; it has no accessory saccvde. The c-bristle is quite short, only about as long as the 

 distal height of the second joint. The c-bristle is more or less straight, the d-bristle is in most 

 ceases not decidedly rolled up. All the joints are quite bare. 



Second antenna: — P r o t o p od i t e: In specimens with shells 1,4 — 1,5 mm. 

 long this attained a length of about 0,75 mm. E x o p o d i t e: The proportion between the 

 length of this branch and that of the protopodite is about 14 : 30. The proportion between 

 the length of the first joint and the total length of the eight following joints is about 2:1. Tlie 



I-i^. CXVI. - Omchocaa ohlonga (C. Claus). - 1. Shril so.-n fion, ll.o side. J: ''6 X. 2. Shell seen from below. 3- 

 ■.9 X 3 Postero-dorsal .orncr of Ihc shell seen from inside. 3: r^■^ X. '.. Margin of the left valve just l.elow the 

 incisur seen from inside. J: 567 X. 5. Postero-.lorsal .orner of the sh.OI seen from insid-. o, ^■^■^ x. fi. ClaspuiK 

 appenda-e of the endopodile of the rishl second antenna, J: '.00 X. 7. Proximal loothl.sl of the n^M mand.l.le seen 

 fn.rn inside. ?: llf>: X. 8. Distal pari of the penis, seen from outside: »X\ X. '-». The fourth to the .seventh .laws 

 of i\w fur. a. j"; '.20 X. 10. Distal part of the r.id-shaped orpan. <S- 187 X. II. Distal part of this organ + a part ..f 

 the rirsi antenna. $: is: X. (.Ml Hie fitrmes are drawn from spe.im.Mis from station 20 li.) 



