V. 



48 



STALK-EYP]D CRUSTACEA. 



-i 



many as five spines. A sharp dark-tipped spine at the external orbital angle, 

 another at the antero-lateral angle of the carapace, and four or five, irregu- 

 larly arranged, on the margin of the branchial region. 



The dorsal face of the second abdominal segment consists of a single 

 plate, nndivided by longitndinal sutures, with a deep depression on each 

 side of the middle. The following segments are unsymmctrical on the two 

 sides in the unique type specimen (female), the abdomen being twisted to 

 the right. The lateral margins of these segments are laciniated. 



Eye-stalks spinulose above, eyes very black, with downward aspect. 

 Distal segment of antennule much longer than the antecedent segment, 

 tuberculous above. Antennae of moderate length; outer margin of first 

 segment spinulose; second segment spinulose and produced on the outer 

 side to a long spine ; movable acicle reaching to the distal end of the 

 peduncle, spinose, the longer spines marginal, one spinule on the lower side 

 and another on th upper side near the base; the penultimate and ultimate 

 segments of the peduncle bear small setiferous tubercles. Right cheliped 

 more robust than its fellow, thickly beset with strong spines. Ambulatory 

 legs of moderate length for this genus, stout, spinose like the chelipcds; 

 their basal segments are well-nigh covered by the overlapping margin of the 

 abdomen (in the female). 



Length of carapace, 113 mm.; length of rostrum, 9 mm.; breadth of 

 carapace, 113 mm.; length of posterior ambulatory legs, 255 mm. (merus^ 

 68 mm.; carpus, 39 mm.; propodite, 72 mm.; dactylus, 56.5 mm.). 



Station 3353. 695 fathoms. 1 fem. 



The specimen above described was infested with a huge reliogader^ 36 mm. 

 in breadth. 



Leptolithodes longipcs Fax. 



Plate IX. 



Male 



Paralowis longipes !Fax., Bull. Mus. Conip. Zool., XXIV. 165; 1893. 



Carapace triangular ; gastric, cardiac, and branchial regions well 

 defined, protuberant; the most prominent part of the cardiac area attains to 



a higher level than the branchial areas; whole surface of. the carapace thickly 



covered with blunt tubercles ; viewed under a lens each tubercle is seen to 



be encircled with a ring of short stiff setai; one of the tubercles, situated in 



front of the centre of the gastric region, is spiniform. Rostrum furnished 



with three prominent spines, one median and inferior, two lateral and su- 



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