354 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



First antenna 6-segmented. Second antenna stout, the terminal 

 hook bearing two small spines and the preceding segment with 

 one short spine. Mouth tube slender, triangular. First maxilla 

 with two stout terminal setae, one of which is three times the 

 length of the other; wide space (0.25 mm.) between the antennae 

 and the first maxillae. Second maxilla about two-thirds as large as 

 maxilliped ; hooks of both smooth. 



First leg with basipod with several acute spines, with 1-seg- 

 mented exopod that bears five terminal spines; endopod with a 

 long terminal seta. Second leg with exopod terminating in a sucker 

 armed with large and small spines; endopod with one terminal 

 seta. The posterior part of the body shows no evidence of seg- 

 mentation. The third legs have an endopod which is less than 

 one-fourth as long as the exopod; that of the fourth leg is less 

 than half the length of the exopod. 



Female. — Unknown. 



Ti/pe.— U.S.N.M. No. 88560. 



Host. — A single male taken from the gills of the long-finned 

 albacore, Germo alalunga (Gmelin). 



Remarks. — This male differs from other species in the genus 

 in having a very wide space between the antennae and the mouth 

 tube and the first maxillae (hence the name hiatus), in the ar- 

 rangement of spines on second antennae, and in the arrangement 

 of the setae on the caudal rami. It appears to be closest to Steen- 

 strup and Lutken's (1861) L. konigii but it differs from that spe- 

 cies in the more slender body, especially in the fewer segments in 

 the first antenna, the spines on the second antenna, and the spinous 

 sucker on the exopod of the second leg. 



LERNANTHROPUS SPICULATUS Wilson 



Ley-nanthrojms spiculatus Wilson, Proc. U. S. Nat. Mus., vol. 44, p. 233, pi. 38, 

 figs. 185-189, 1913. 



One female was taken from a gill of a lane snapper, Lutianus 

 synagyHs (Linnaeus). 



LERNANTHROPUS LONGILAMINA, new sp«cies 



Figure 73 



Female. — Body stocky, the dorsal plate wider and longer than 

 remainder of body. Two prominent lateral lobes at anterior end, 

 which cover the extended second antennae almost to the hooks 

 (fig. 73, d), tv/o deep lateral constrictions behind the cephalotho- 

 rax. Egg strings projecting a little beyond the dorsal plate, in the 

 type bearing 50 and 51 flat eggs. 



