NO. 20G3. NORTH AMERICAN PARASITIC C0PEP0D8— WILSON. 633 



of the same species given by Gadd in 1904 it is certain that neither 

 of the species belongs to the genus Lernaeopoda as here constituted. 

 They have no dorsal carapace, no differentiated thorax segments, no 

 posterior processes, and no palp on the first maxillae. They do 

 agree, however, in all known particulars with the new genus Sal- 

 mincola, and accordingly are transferred to that genus. 



L. cyprinacea Hermann, 1783, pi. 2, fig. 7, is a synonym of Gissler's 

 L. salmonea. 



L. dalmanni (Retzius), 1829, p. 109, pi. 6, belongs to the genus 

 ■ CJiarojnnus (seep. 655). 



L.fontinalis Smith, 1874, p. 663, pi. 3, figs. 12 to 14, is a synonym 

 of Olsson's L. edwardsii. 



L. (?) lampri T. and A. Scott, 1913, p. 202, pi. 33, fig. 6; pi. 49, 

 figs. 12 to 16, if compared with the male shown in fig. G will be found 

 to agree so closely as to leave no doubt that the species belongs to 

 the genus Thysanote rather than to Lernaeopoda (see p. 650). 



L. longibracMa Brian, 1912, p. 39, pi. 2, fig. 5; pi. 12, figs. 1 to 

 12, and L. longimana Olsson, 1869, p. 38, pi. 2, figs. 18 to 22, have 

 no dorsal carapace and no free thorax segment, both rami of the 

 second antennae are unsegmented, and the posterior processes are 

 dorsal instead of ventral. For these reasons they are transferred to 

 the new genus Lernaeopodina (see p. 640). 



L. musteli Thomson, 1889, p. 373, pi. 28, figs. 9 and 9a, is founded 

 on a single female, has never been seen by any other investigator, and 

 no data are given with reference to the appendages, so that it can 

 not be located anywhere with certainty, but is possibly a synonym 

 of L. galei. 



L. obesa Kr0yer, 1837, p. 270, pi. 3, fig. 13, a to c, was shown by 

 Olsson to belong to the genus BrachieUa (see p. 701). 



L. scyllii Richiardi, 1880, p. 151, was a mere name without descrip- 

 tion or figures, but Brian identified it in 1899 and gave a text figure 

 of the female. If his identification is right, the species is a synonym 

 of L. galei. 



L. sehastis Kr0yer, 1863, p. 279, pi. 17, fig. 7, a to Ji, is founded 

 upon two mutilated specimens obtained from a Greenland fish and 

 has never been seen by any other investigator. It presents several 

 details which are radically different from the genus as here estab- 

 hshed, notably in the structure of the second antennae and first 

 maxillae, as weU as in the absence of posterior processes and a dorsal 

 carapace. The two appendages which look hke posterior processes 

 in Kr0yer's figure are stated in his description to be spermatophores. 

 There are enough of these differences to exclude the species from the 

 genus Lernaeopoda, but not enough to enable us to locate it anywhere 

 else with even a probability. Hence the best that can be done is to 

 leave it until further details can be obtained. 



