Die nordischen Schizopoden. VI 93 



the left side having more teeth than the right. Maxillae as in Arachnomysis, 



except that here the paragnath of the second maxilla would appear to be absent 



(see Chun). First thoracic limb very robust and sfrongly armed, joints short, 



broad and stout, fifth Joint rather more expanded than in Arachnomysis and more 



setose sixth Joint much smaller than fifth. Second thoracic leg 



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



and narrower than basal, merus long and narrow, carpus equal 



in length to the merus and of similar structure; propodus small; 



dactylus rather longer than propodus; both the two last-named 



joints beset with numerous plumos setae. Exopodites of all 



the thoracic limbs with a spine on the outer distal angle of 



Fig. 187. Telson. the basal Joint. Flagelliform part composed of eight or nine 



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



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



Segments armed on their posterior border with spines, some of which are forwardly 



directed. Sixth segment with the posterior angle of epimera produced into a spine. 



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



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



feebly armed with 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 shortcr than the outer. Their 



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



pair being very large and extending as far as the posterior border of the second 



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



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



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



Verbreitung: Bisher nur aus den irischen Gewässern bekannt. 



Gattung Katerythrops Holt u. Tattersall. 

 1905. Katerythrops Holt u. Tattersall, Fisheries Ireland Sei. luvest, 1902/03 

 IV p. 117. 



Die Gattung unterscheidet sich von Meterythrops in folgenden Punkten: 



„Antennal scale considerably reduced in length in proportion to peduncles 



of antenna and antennule, narrow 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 margin. Telson possibly without 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. 



