SYSTEMATIC REPORT 97 



the proportions of the various parts. The material is not in good condition and there is not a single 

 perfect specimen. Also the number taken at any one station is very small. It may well be that we 

 have here more than one species, but until further material comes to hand, I do not feel justified in 

 splitting the present species on the small points of variation which I have mentioned. I have great 

 pleasure in naming the species after the late Dr W. T. Caiman to whom I owe so much for help and 

 guidance in the past. 



Distribution. All the specimens of this species in the Discovery collection were taken in depths 

 of from 94-219 m. at stations situated to the north of the Falkland Islands. It would not appear to be 

 a gregarious form, because at four stations only a single individual was taken and only a few at the 



other stations. 



Pseudomma schollaertensis sp.n. 



Occurrence: \ *&• 7 ) 



St. 181. 12. iii. 27 (day). Schollaert Channel, Palmer Archipelago. 64 21 S., 63°oi'W. 160-335 m -> 2 <$<$> 

 15 mm., 1 juv. (J, 2 ?$, 14-5 and 15 mm., 1 juv. $. Types. 



Description. General form slender. Antennular peduncle robust, with the third segment longer than 

 the first and second together (Fig. 17 A). Antenna! peduncle long and slender; equal in length to the 

 antennular peduncle or slightly longer and fully three-quarters as long as the scale. Scale five times 

 as long as broad; tooth terminating the outer margin unusually strong and long, extending a little 

 beyond the short apex; very strong spine on the outer, distal corner of the sympod (Fig. 17 A, B). 



Fig. 17. Pseudomma schollaertensis sp.n. A, anterior end of adult female in dorsal view; B, right antenna; C, endopod of first 

 thoracic appendage; D, second thoracic appendage; E, fourth thoracic appendage; F, left uropod; G, telson in dorsal view. 

 All x 20. 



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