VI 92 



Carl Zimmer. 



„Form rather stout. Carapace short, gibbous, armed with spiiies on anterior 

 margin, with a Single spine on each lateral margin at tlie origin of the thoracic 

 part. Pleon distinctiy arched, its segments armed posteriorly with spines, of 

 which some are upwardly or forwardly directed. Pediincle of antenna armed with 

 a spine but destitute of a scale. Cephalon not unusually elongate, no perceptible 

 interval between cephalic and thoracic appendages. Mandibular palp three-jointed. 

 Second maxilla destitute of paragnath. Telson short, lamellar, feebly armed. 

 Incubatory lamellae of female, two pairs." (1. c.) 



Die Außengeißel der ersten und die Geißel der zweiten Antennen sind 

 3—4 mal länger als der Körper. Die Füße sind sehr lang und schlank. 



53. Chunomysis diadema H. & T. 



Fig. 186-187. 

 1905. Chunomysis diadema Holt & Tatersall, Fisheries 



Ireland, Sei. luvest. 1902. 

 1903. IV p. 128— 130,tab. 

 19 f. 1 — 4, tab. 25 f. 1—7. 



Form robust. Carapace much wider than pleon, not 

 covering all the thoracic segments; deeply emarginate on 

 its posterior border, anterior border evenly rounded and 

 armed with seven long, slightly depressed, and curved 

 spines, set in the form of a crown. Lateral edges of the 

 carapace bearing at the origin of the thoracic part a short 

 stout and blunt spine. F.yes large, reaching to the end 

 of the second Joint of the antennular peduncle, their peduncles 

 short, subtriangular in horizontal section. Colour of visual 

 part orange brown after preservation. Antennular peduncle 

 about one-quarter the length of the carapace; last Joint as 

 long as the preceding two, much stouter and thicker than 

 either of the others. Antennal peduncle more slender 

 than the antennular peduncle, and in dorsal view completely 

 hidden by the latter. Antennae devoid of scale but armed 

 on the basal Joint with a long spine which reaches nearly 

 to the centre of the last Joint of the peduncle. Mandible 

 very strong, palp three-jointed, basal Joint the longest, stout, 

 armed on the inner edge with strong setae, a fascicule of 

 which also occurs on the inner distal angle of the Joint; 

 next Joint smaller and more slender than the first Joint, 

 feebly armed with setae; last Joint longer than the second 

 but shorter than the first, robust, and strongly armed with 

 numerous setae on the inner edge, which setae are densely 

 plumose. There is one long and strong seta at the tip of 

 the last Joint of the palp. Cutting edge not equally developed on both sides. 



F 



Fig. 186. 

 9 von oben. 



