PYCNOGONIDA— CALMAN. 11 



V". Eyes present. 



a'"". Claw nearly equal to propodus. . . . . . C. megalomjx, Hoek 



b'"". Claw not more than two-thirds of propodus.'' 



Legs spiny ........ G. rugosa, Hodgson 



Legs smooth ........ C. frigida, Hodgson 



h. Sixth segment of palp not more than twice as long as thick. Proljoscis, at 

 most, hardly longer than trunk. 



a'. Lateral processes in contact ....... 0. wilsoni, sp. n. 



U. Lateral processes separated. 



a". Femur longer than second tibia. 



a'". Sixth segment of palp longer than seventh . . . . C. glacialis, Hodgson 



{C. gracUiijes, Bouvier) 

 V". Sixth segment of palp shorter than seventh . . . . G. dralcei, sp. n, 



h". Femur not longer than second tibia. 



a"'. Lateral processes separated by their own diameter . . . G. rohusia, Hoek 



h'". Lateral processes separated by less than their own diameter . G. lilliei, sp. n. 



C. patagonica, Hodgson, described from au imperfect specimen and not figured, 

 appears to be allied to C. glacialis, Hodgson. 



It may be worth while here to give the names of the species included in the 

 " brevitarsal " group as far as I have been able to collect them. They are C. gigas, 

 leptorliynclms, minuta, and japo7iica of Hoek, colossea and mncerrima of Wilson, clavata, 

 Meinert, hicincta and suhminuta, Schimkewitsch, cucurhita, Cole, gardineri. Carpenter, 

 dofleini, Lomau, and michaelsarsii, Olsen. 



Colossendeis scotti, sp. n. (Text-fig. 1). 



Occurrence. — Station 294, Ross Sea, 158 fathoms ; 1 $ (Holotype), 1 $. 



Descrijytion. — Trunk compact, its greatest width across the first pair of lateral 

 processes more than two-thirds of its length ; lateral processes almost or cjuite in 

 contact with each other except the third and fourth pairs, which are separated by a 

 small interval ; inter-segmental lines very indistinct. Ocular tubercle bluntly conical 

 or rounded at the tip, not occupying more than one-third of width of cephalic segment ; 

 eyes dark, sharply defined, anterior pair hardly larger than posterior. On dorsal 

 surface behind ocular tubercle is a convex area defined posteriorly by a crescentic 

 groove ; no anterior tubercles on cephalon. 



Proboscis decurved, more than twice as long as trunk, narrow and cylindrical for 

 the first quarter of its length, then expanding to nearly twice the width at about the 

 middle, narrowina; ascain to a slio-ht terminal dilatation where it measures about five- 

 sixths of its greatest width. Mouth-opening conspicuously wide, the labial teeth 

 apparently smaller, or at least capable of further retraction than in allied species. 



Abdomen shorter than greatest diameter of proboscis, decurved, cylindrical, blunt. 



Palp with second segment a little less than twice as long as fourth ; sixth longer 

 than fifth and nearly four times as long as thick ; seventh shorter than its width and 



* But see remarks on G. rugosa below. 



C 2 



