108 
Prof. "Carl Claus on the 
Lamiidse. 
Geroplesis signata , sp. n. 
Niger, brevissime pubescens : thorace disco foveato-punctato ; elytris 
fortiter sat crebre punctatis, fascia rufa ante medium ad suturam 
paullo interrupta ornatis. 
Long. 9^ lin. 
Hah. E. Africa. 
This species is very close to G. cethiops , but is relatively 
narrower and has the elytra a little more acuminate at their 
apex. The thorax has a strongly marked, impressed, trans- 
verse line in front of and behind the disk, so that the disk is 
more convex than in G. cethiops , somewhat shining, with a 
median impressed line; the sides of the disk with some rather 
large deep punctures. The elytra are clothed with short 
pubescence, but the rather coarse and moderately close 
punctuation is nevertheless visible, especially at the base ; 
just before the middle there is a bright red fascia, nearly 
rectilinear posteriorly, but obliquely narrowed anteriorly near 
the suture, where there is a slight interruption. 
XIII. — On the Organization of the Cyprides . 
By Prof. Carl Claus *. 
Since the publication of Zenker’s well-known Monograph 
(1854), although the number of forms described as species 
and the division of the old Mullerian genus Gypris into sub- 
genera and new genera have advanced considerably, our 
knowledge of the organization of the freshwater “ Ostracoda ” 
has made no particular progress. With the exception of my 
little treatise on the developmental history of Cypris, pub- 
lished twenty-two years ago, and the recently issued memoirs 
of some pupils of Weismann’s (Stuhlmann, Nortquist) on the 
so-called mucous glands, recognized as an ejaculatory appa- 
ratus, of the male Cyprides, we stand essentially on the plat- 
form of Zenker’s Monograph, and for information on the details 
of organization are compelled to go to that work, which, not- 
withstanding the imperfect methods of investigation prevalent 
at the time of its publication, furnished many important 
results. Nevertheless it does not come up to the present level 
* Translated from the Anzeiger d. kaiserl. Akad. d. Wiss. in Wien, 
March 20, 1890, pp. 1-6. 
