VI 110 Carl Zimmer. 



eiitire tcniiinatin<j in a strong spinc, apcx obtuseiy roiiiuied and alniost imperceptibly 

 extending- beyond tlie outer terminal spiiie. Moutli parts of the usual type found 

 in the genus. First thoracic legs very nnich as descrihed for P. callophira, with, 

 howevcr, the carpus siiorter than the nierus, propodus short, nail well developod, 

 distinct and longer than the propodus; setae as in P. callopiura. Second thoracic 

 legs inuch as in P. rosemii; carpus shorter than nierus: the proi^odus niuch better 

 developod than in either P. callopiura or P. Kenipi, and densely arnied with both 

 simple and plumose setae; nail distinctly present but sniall, shorter than the pro- 

 podus and hidden among the setae of the propodus. Exopods of all the thoracic 

 limbs well developed, outer distal corner of the basal Joint slightly acuminate, 

 flagelliform part of eleven joints. Pleopods of the female of usual structure, those 

 of the male well developed, biraiuous, natatory, of the type niet with in P. roseuni; 

 inner brauch of the first pair with a Single long seta at its tip, and three or four 

 on its inner edge, lateral lobe well developod aiul fipped with two or three long 

 setae. Telson as long as the last segment of the pleou, base nearly three times 

 as broad as apex; apex broadly rounded, entire, armed with a pair of median 

 setae and four pairs of strong simple spines, the innermost pair the longest, about 

 one-quarter the length of the telson, each succeeding pair shorter than its inner 

 neighbour; lateral margins uiiarnied. Inner uropods once and a quarter, outer 

 uropods once and a half the lenglh of the telson; no spine at the base of the 

 inner uropod. Length of the type female 8 mm, of the type male (adult) 

 6,5 mm." (1. c.) 



Verbreitung: Bisher nur an den irischen Gewässern von 200 — 372 F. 

 Tiefe bekamit. 



66. Pseutlomma theeli Ohlin. 



Fig 220-222. 



1901. Pseudoiuma theeli Ohlin, Bih. Svenska Ak., v. 27, Afd. 4, Nr. S, p. 78, 



79, fig. 5. 



„Eye-scales quite coalesced, non serrafed, without any trace of a median 

 fissure, seen from above representing an equilateral triangle, the lateral sides of 

 which are somewhat sinuated. Anfennal scale relatively mucli longer than in the 

 other species, five times as long as tliey are broad, its outer margin terminating, 

 as usual, in a strong spine, which, however, is situated, contrary to wliat is the 

 case in the other known species, at the apex of the scale. In this respect it comes 

 nearest to Pseiidoinina Sarsii Willemoes-Suhm, and is farthest remote from 

 Pseudomma australc, in which this spine is situated very near the base of the 

 scale. Pseiidomtna Theeli and Pseiidoiiinia aiistmle tluis represent the extreme 

 poles in regard to the relative length of the outer margin as compared with the 

 inner setous oiie, the other species being intermediate links in the series. 



