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SCOLOPIITHALMUS. 



225 



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the basal segment bears a small vesicular incubatory lamella, the second seg- 

 ment a well developed exopod ; the body of the fourth segment is very short, 

 but is expanded internally into a large and broad porrect lobe or plate, which 

 reaches forward nearly to the end of the long filth segment ; the inner mar. 

 cnu of this lobe is fringed with seta? ; terminal segment small, its margin 

 setifcrous, and tipped with a strong spiniform seta. The following pairs of 

 legs are long and slender, the antepenultimate reaching forward beyond the 

 base of the antennal scale ; the third and fourth pairs are imperfect in both 

 of the specimens obtained, only the bases together with the exopods remain- 

 ing ; the distal segment of the second pair is sbort, unguiform, and partially 

 concealed by long setce, which arise from the distal end of the antecedent 

 seo-ment ; the distal segment of the fifth, sixth, and seventh pairs is lanceo- 

 late, and drawn out to an exceedingly long and acute point ; the proximal 

 end of the propodiLes of these three pairs of appendages is divided into three 

 short sea-men ts. The first to the fifth abdominal appendages bear each 

 a pair of simple appendages which increase in size successively from the first 

 to the fifth ; the inner branch of the posterior pair of abdominal appendages 

 (nropods) is long, lanceolate, surpassing the telson and the outer branch, the 

 latter of which is rounded at the distal end, and divided by a transverse 

 suture; the inner branch is setose on both margins, the outer branch is 

 setose on the inner margin and also the distal part of the outer margin, 

 beyond the transverse sutnre ; there is a spine at the point where the 

 transverse suture meets the external margin of the outer branch. Marsupial 

 pouch of female composed of seven pairs of incubatory lamelte. 



The natural position of this genus appears to be next to Hans cnom?/ sis, 



fuUce taken off the w 



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coast of Greenland in 80 fathoms. As far as can be determined by compari- 

 son with Hansen's description and figureS; ScohpUhalmus differs from Han- 

 senomyds in having a prominent rostrum, spiniform eye-stalks (?) and long 

 robust antennular peduncles which surpass in length the antennal peduncles 

 and equal the antennal scales; moreover, the proximal part of the outer 

 margin of the antennal scale is smooth and naked in ScolopUhahiuH , and the 

 outer plate of the nropods is fringed with setiie on the inner margin only. 

 The maxillipeds of ScolopJdhahnus, like those of Ilanscnomysis, are devoid of 

 exopods and internal moral lobes. The gnathopods are similar to those of 



* AfcMmiysu Hansen, Vidensk. Meddclelscr fra Naturliist. Forcuing i Kjobcnliavu for Aarct 1S87, 

 p. 210, rialc VII. Fig. 5-5^, 1888 {jimu pmoc.) ; Ilansenmmjsis Stcbbing, Hist. Crust., p. 268, 1893. 



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