>.^Kfl 



190 



STALK-EYED CRUSTACEA. 



fifth, but shorter than the tclsoii, which is narroW; triangular^ grooved 

 above, and armed with one pair of lateral spines about quarter way from 



the tip. 



The eye-stalks, are about one half the length of the rostrum, and are 



furnished with a small tubercle on the inner side ; the eyes are large, black, 



much broader than their stalks. Antennules longer than the carapace. 



Antenna) as long as the body; scale narrow, margined within with long cilia; 



a small spine on the outer side of peduncle at the base of the scale. The 



following pairs of appendages have the form characteristic of the genus. 



In the female there is a large process, covered with stiff hairs, and 



flattened on its inner side, developed from the base of the third pair of legs. 



Behind this process hes a pair of. flattened, setiferous, sternal processes. 



Between the legs of the fourth pair there hangs in the median line a nearly 



vertical curtain-like partition, notched on the free lower margin^ and flanked 



by two lower, blunt, setiferous tubercles. The sternum of the posterior 



thoracic segment has a slightly elevated median longitudinal ridge, and 



a low transverse ridge at the posterior boundary of the segmcntc The form 



of the petasma of the male is best understood by inspection of Figure T' on 



Plate XLVllL 



Length of a female specimen, 81 mm. j carapace, 31 mm.; rostrum, 



8 mm. 



Station 3353. 



695 fathoms. 



" 3366. 



1067 



" 3382. 



1793 « 



1 fern 



a 



u 



6C 



6i 



U 



3398. 1573 



3399. 1740 



3400. 1322 



3407. 



885 



3413. 1360 



iC 



ii 



u 



u 



u 



1 



2 

 2 



1 male. 



2 fem. 



i.i 



a 



u 



1 



a 



1 male, 2 fem. 



This species is apparently very similar to 11. Imvis Bate, but the eye of 

 the latter species is much smaller, the areolation of the carapace different in 

 some regards, and, if Bate's figure* can be relied on, the tclson is much 

 shorter. The two dorsal spines of the gastric region are situated much 



H. Imvis than in H. 



nereiis. 



\ 



In Bate's description of the 'genus Haliporus in the ^^ Challenger " Re- 

 port (p. 284), the legs are said to be devoid of exopods, but on page 287 



* Ecp. Challenger Macriira, Plate XLII. Pig. 2, 1888. 



