46 STALK-EYED CRUSTACEA. 
In the genus Paralomis, as typified by P. granulosa and illustrated also 
by P. diomedewe, the ambulatory appendages are considerably longer than the 
chelipeds, and much longer than the carapace is broad; when flexed beneath 
the thorax, the tips of the dactyli extend over the ischia even to the basal 
segments; although the legs are folded beneath the body when at rest, 
there are none of those special modifications of structure resulting in that 
perfect fitting together and fixity of parts exhibited in the genus Echinocerus, 
as described above. 
The natural position of Paralomis lies between Echinocerus and Leptolithodes. 
Paralomis diomedez Fax. 
Plate VII, Fig. 3, 8°, 3°. 
Echinocerus diomedee@ Fax., Bull. Mus. Comp. Zodl., XXIV. 164, 1893. 
Carapace subpentagonal, gastric and branchial regions inflated, the whole 
surface beset with tubercles which give rise to minute sete. There is one 
rather more prominent tubercle in the depression on each side of the gastric 
area. Rostrum short, three-spined; one of the spines is median and inferior, 
two are paired near the base above; in one of the two specimens obtained 
the median spine is toothed below. The antero-lateral margin of the cara- 
pace is irregularly toothed. Eye-stalks spinulose above, with one prominent 
spine projecting forward over the cornea. The movable scale or spine of 
the antenna is spinulose on each side (four or five spines on each margin). 
The merus of the cheliped bears a spine on the inner side at the distal end ; 
the carpus is smooth outside, the inner border expanded into a seven-toothed 
crest setose within, the outer border straight, naked, and keeled; the chelze 
are of unequal size (the right being the larger), setose, spiny on the upper 
edge, fingers spoon-shaped within, setose and somewhat gaping. 
Ambulatory appendages: the meri are spinose on their edges; the ante- 
rior border of the carpus of the first pair is furnished with. a crest whose 
edge is even and entire; the propodite of the first pair is crested along the 
proximal half of its anterior border, while the distal half is armed with two 
or three teeth; the carpus and propodite of the second and third pairs are 
toothed on the anterior margin, the propodite of the third pair is also toothed 
on the posterior margin ; all the segments are hirsute, especially the dactyli. 
When the legs are closely folded against the sides of the carapace a wide 
interval is left between the carpi of the cheliped and first pair of ambulatory 
