Marine Copepoda 13 K 



Station 36: Off cape Lyon, Darnley bay, Northwest Territories, five minutes 

 tow in surface, with net number 4, 1 from ship, water depth five fathoms , August 

 23, 1914. Only eight copepods preserved, all males: five Acartia longiremis 

 and three Eurytemora herdmani. One of the latter was 1-20 mm. long; a male 

 from station 21 (Table II) measured 1-36 mm. 



Station 410: Bernard harbour (outer harbour), surface net number 3, 

 five minutes, August 1, 1915. One female in company with Cyclopina schneideri, 

 Harpacticus uniremis and Harpacticus super flexus. 



11. Eurytemora johanseni, n. sp. 



This species was taken in company with E. herdmani (Table II and Table 

 XII) from which it may be recognized externally by the length of the caudal 

 furca. Whereas E. herdmani is longifurcate, the furca much exceeding the 

 length of the anal segment, E. johanseni is brevifurcate, the furca and anal 

 segment being subequal in length (Fig. 5). 



I 1 



Fig. 5. Eurytemora johanseni 9 . 

 Dorsal view of hind-body. 



Description of female: total length 1-28 mm., anterior antennae as long 

 as forebody; length of caudal furca 0-112 mm., of anal segment 0-104 mm., 

 wings of genital segment small; mouth-parts as in E. velox. The fifth legs (p. 59) 

 are four-jointed as in the type species; the unguiform process of the penultimate 

 joint (Re 1), not exceeding Re 2 in length, is coarsely denticulated on its outer 

 side; the right Re 2 (distal joint of the appendage) is larger than the left and 

 crenulated on its inner border (Fig. 6). 



Fig. 6. Same. Fifth legs. 



Description of the male: total length 1-12 mm. The anterior antennae 

 are to be distinguished from those of E. herdmani on close inspection (Figs. 7-10). 

 In both species, the intumescence in the middle section of the right antenna 

 is formed by joints 13-18 inclusive. Of the two distal joints beyond the bend, 

 the penultimate joint is to the terminal joint as 5: 8 in herdmani and as 4: 5 in 

 johanseni. In other words, the penultimate joint of the right antenna of E. 



1 Net as net No. 3 (see note p. 4K), but made of fine silk. 



