500 
W. T. CALM AN. 
short peduncle, from which it is separated by a transverse 
articulation or suture.” It now appears probable that the 
“ peduncle ” was formed by the collapse of the proximal part 
of the epipodite in the shrivelled type-specimen. In reality 
there is no peduncle, the epipodite springing directly from a 
narrow base of attachment. The transverse suture suggests 
comparison with the suture-line which I described near the 
base of the epipodites of Anaspides, but in that case it is 
the small basal portion which is more thickened, and the 
distal part soft and membranous. 
The epipodites of the proximal series are not constricted at 
the base, but form merely lobular processes of the outer 
surfaces of the coxopodites. They have a very delicate 
cuticular covering and are not divided by suture. 
Abdominal Appendages. — In the abdominal region the 
only appendages present are those of the first and sixth 
somites. The former (pleopods) are short, uniramous, and 
consist of two segments ; they present no sexual differences 
(Text-fig. 1). The appendages of the sixth somite (uropods) 
(Text-figs. 4 and 11) are very stout, with the peduncle 
laterally compressed, and armed with a row of spines on the 
inner side ; the endopodite is sub cylindrical, and bears a 
group of spines and long setae distally; the exopodite is 
conical, much shorter than the endopodite, with two apical 
setae. 
III. Internal Anatomy op Bathynella. 
As I have had no opportunity of studying the soft parts, 
the following notes are based solely on the observations 
recorded by Chappuis. 
Alimentary System. — No masticatory stomach is des- 
cribed, a smooth muscular oesophagus extending as far as the 
sixth thoracic somite. This is followed by a widened portion 
{“ Magen ”) reaching into the last thoracic somite, with 
opaque glandular walls thrown into four longitudinal folds. 
This may be supposed to represent at least a portion of the 
