14 ORTMANN 
form; the inner part is drawn correctly, showing the setiform 
tip and the horny spine; this spine, however, is drawn triangu- 
larly-single-pointed, while it is really slightly procurved and 
two-pointed. The outer part is represented in this drawing by 
a blunt, conical process, while actually it resembles the con- 
dition seen in the male of the second form, being concealed by 
the inner part with the exception of the swollen anterior margin, 
which projects slightly. Fig. 5 (outer view of same organ) is 
Fic. 3. Cambarus cubensis Sauss. a, First pleopod (left side) of male (II), 
outer view; 4, the same, inner view; c, tip of same organ of male (I), inner 
view; d, annulus ventralis of female. All figures enlarged. 
quite unintelligible; the tip of the outer part is not correctly 
represented, while the horny process is much too thin and is 
recurved, instead of procurved. 
That the differences between Faxon’s figures and our speci- 
mens are due to incorrect rendering of the object by the draughts- 
man, is evident from the fact that it is impossible to reconcile 
the different views (inner and outer) of the same object. Correct 
figures of the organ in question are submitted here. 
Thus the copulatory organs of C. cubensis clearly belong to 
the type of the subgenus Procambarus; the outer part has no 
terminal horny teeth, but is soft and blunt; the inner part is flat- 
