COPEPODS OF THE WOODS HOLE REGION 567 



52. Exopods of first legs 1-segmented, of second, third, and fourth 



legs 3-segmented; body and appendages hairy; end segment 

 of fifth leg five times as long as wide; littoral (Bahama Islands) . 



? Esola C. L. Edwards, 1891 



Exopods of first legs made up of 2 segments 53 



Exopods of first legs made up of 3 segments 58 



53. First legs prehensile, one or both rami tipped with claws 54 



First legs natatory, both rami tipped with plumose setae 57 



54. Second leg uniramose, 2-segmented; a stout, recurved claw on 



outer margin of second segment of first antenna; fifth leg 

 2-segmented, end segment with 3 setae; sandy bottom, 



shallow 9 Pseudolaophonte A. Scott, 1896 



Second leg biramose; no claw on second antennal segment 55 



55. Body depressed, each segment with large lateral lamellae; 



caudal rami lamellar, with rudimentary setae; exopod of 

 second antenna 1-segmented; littoral, often in tide pools. 



9 Asellopsis Brady, 1873 

 Body cylindrical, not depressed, without lateral lamellae; 



caudal rami also cylindrical, with well-developed setae 5G 



56. Posterior corners of head produced into spines; basal segment 



of first antenna elongate, with a spine at its inner distal 



corner; sandy bottom, shallow 9 Paramesochra T. Scott, 1892 



No spines at posterior corners of head, or on inner margin of 

 basal antennal segment, but sometimes on outer margin of 

 second segment; littoral, among algae. 



9 Laophonte Phihppi, 1840 (p. 262) 



57. Body cylindrical; first antenna 8-segmented; second antenna 



with 3-segmented endopod and 2-segmented exopod; end 

 segment of fifth leg with 3 apical spines; wet moss in forest. 



cf 9 Maraenobiotus MrJlzek, 1894 

 Body cylindrical; first antennae 4-segmented; second antennae 

 with 2-segmented endopod and 1-segmented exopod; end 

 segment of fifth legs with 4 setae; muddy bottoms. 



9 Sarsocletodes Wilson, 1924 ^s 



58. Exopod of second antennae lacking or replaced by a seta 59 



Exopod of second antennae made up of a single segment 60 



Exopod of second antennae made up of 2 segments 73 



Exopod of second antennae 3-segmented, endopod also 3-seg- 

 mented; end segment of fifth legs 3-lobed, each lobe with a 



seta; basal expansion with 4 setae; sifted from dredgings. 



9 Pseudozosime T. Scott, 1912 



59. Endopod of first leg twice as long as exopod; end segment of 



fifth leg as wide as long, with 3 apical setae; first antennae 

 7-segmented; littoral, moderate depths 9 Leptopontia T. Scott, 1902 



Exopod of first leg longer than endopod; end segment of fifth 

 leg four times as long as wide, with 5 setae; first antennae 

 5-segmented; muddy bottom, shallow 9 Cletodes Brady, 1872 



Rami of first leg equal or subequal; end segment of fifth leg 

 twice as long as wide, with 5 setae; first antennae 6-seg- 

 mented; muddy bottoms cf 9 Eurycletodes (pars) Sars, 1909 



60. First legs prehensile, one or both rami tipped with spines 61 



First legs natatory, both rami tipped with plumose setae 66 



" A name to replace Sars's Pseudodelodes, which had been preoccupied. 



