1908] - Decapod OCrustaceans. 5 
Trypom's work); figures namely of the 1st pereiopod (right) seen 
from two different points of view. 
Calocarides crassipes Trypom. 
Deseription:*) Carapace is similar in size shape and 
strueture to that of UC. coronatus Try». and has like it anteriorly 
one median and two lateral carinae with small teeth: also a sub- 
dorsal carina with small teeth on each side of the median carina 
between it and each of the two lateral carinae. None of the 
carinae reach further back than the cervical groove, which is well 
defined. There is no trace of any carinae behind the cervical groove. 
The number of spines on the lateral and subdorsal carinae varies 
somewhat in the different specimens: while further in å given 
specimen the spines to right and left of the median carina may differ 
in number. The spines on the lateral carina vary from four to seven 
and those on the subdorsal carina from two to five. Rostrum triangular 
and tapering, slightly ascending, armed on either side with å row of 
small teeth (4—7). Its length in å specimen 57 mm. long (measured 
from the posterior margin of the telson to the tip of the rostrum) 
was 3 mm.: and in the other slightly smaller specimens the length 
of rostrum relatively to size of body was approximately the same. 
Abdominal segments smooth, without armature: first seg- 
ment shorter than the succeeding ones, with åa dorsal depression 
(corresponding to the dorsal depression on the posterior portion of 
the carapace: see habitus-figure). Pleura on the 2nd, 3rd, 4th and 
5th segments rounded, without armature: the inferior margin fur- 
nished with setae. Pleura of 2nd segment larger than the suc- 
 eeeding ones. Smallest pleura on 5th segment. 
Eyes reach forward almost to the middle of the rostrum. The 
outer rounded portion is slightly narrower than the eye-stalk, 
- colourless throughout, without any dark pigment. 
1st Antennae (tig. 1, III)?) carry two flagella of which the 
inner one is slightly longer than the outer. Kach of these flagella 
1 I have used the nomenclature employed by Spence Barz in the Report 
on the Challenger Expedition. Vol. XXIV. 
2) Figes 1 &2 III, have only been given in outline (using the drawing-prism) 
since these extremities coincide in the main fairly exactly with the same limbs 
in C. coronatus, which will be found extremely well depicted in Trysow's work. 
