Die nordischen Schizopodeii. VI Q3 



the left side liaviii.^- more tedli tlian tlie right. Maxillae as in Araclmomysis, 



except that here the paragiiatli of the secoiui maxilla would appear to be abseilt 



(see Chun). First thoracic linib very robust and strongly armed, joints short, 



broad and stoiit, fifth Joint ratlier more expaiuletl tlian in Arachnomysis and more 



setose sixth Joint mncli smaller than fifth. Second thoracic leg 



feeble and slender, basal Joint broad and flat, next two small 



and narrower than basal, nieriis long and narrovv, carpus equal 



in lengtii to the merus and of siniilar structiire; propodiis sniali; 



tlactylus ratlier loiiger than propotlus; both the two last-nanied 



joints beset witli numerous pliimos setae. Exopodites of all 



the thoracic linibs witli a spine on the outer distal angle of 



Fig. 187. Telson. the basal Joint. Flagelliforni part coniposed of eiglit or niiie 



joints. Pleon arclied, narrower than the carapace. First five 



Segments subequal, last about equal in length to the preceding two. First five 



Segments armed on tlieir posterior border witli spines, sonie of whicli are forwardly 



directed. Sixth segment witli the posterior angle of epimcra produced into a spine. 



Telson short, feeble, about three-fifths of the lengtli of the last segment 



of the pleon, and as long as its breadth at the base, lateral margins entire, apex 



feebly armed witli two pairs of short spines, the innermost pair the longer 



and setiform, but not plumose. Outer uropods about two and a half times as 



long as the telson. Inner uropods very little shorter than the outer. Tlieir 



ventral surfaces naked. Female witli two pairs of incubatory lamellae, the posterior 



pair being very large and extending as far as the posterior boi'der <>f the seconil 



segment of the pleon. Colouration, of preserved specimens, yellowish browii. 



Length, rostral spine to eud of telson, 8 mm. 



Male unknown, our material consisting of two females." (1. c.) 



Verbreitung: Bisher nur ans den irischen Gewässern bekannt. 



Gattung Katerythrops Holt u. Tattersall. 

 1Q05. Katerythrops Holt u. Tattersall, Fisheries Ireland Sei. luvest. 1902'03 

 IV p. 117. 



Die Gattung unterscheidet sich von Meterytlirops in folgenden Punkten: 



„Antennal Scale considerably reduced in length in proportion to peduncles 



of antenna and antennule, narrovv and feeble, its outer margin naked, entire, ter- 



minating in a small spine, setae few, confined to the apex and distal third 



(appoximately) of the inner niargin. Telson possibly witlmut the median setae" (1. c). 



54. Katerythrops oceanae Holt u. Tattersall. 



Fig. 188-191. 



1905. Katerythrops oceanae Holt u. Tattersall, Fisheries Ireland Sei. luvest. 



1902,03. IV. p. 117-119, tab. 20. 



