272 



Miss H. Richardson on the IsopoJs cf the 



Benedict, from Pensacola, Florida, presents points of dilTer- 

 ence wliicli are interesting and which can easily be recognized 

 in the manuscript quoted in the footnote (pp. 271-273). 



59. Cleantis Ileathii^ sp. n. 



Body slender, elongate; surface smooth. 

 Head with lateral margins straight ; anterior margin 

 slightly excavate. Eyes small, lateral. 

 First pair of antennte consist of four '^' ""'"*■ 



joints and are a little longer than half 

 the width of the head. The second 

 pair of antennae are half as long as 

 the body and are composed of nine 

 joints, the three terminal ones forming 

 the flagellum, whicli cannot be distin- 

 guished from the peduncle. 



Thoracic segments subequal, with 

 narrow ejnmera, those of the second, 

 third, and fourth segments reaching 

 but half the length of the segments, 

 the last three epimera extending to 

 the extremity of the segments. 



The abdomen is composed of three 

 segments with suture- lines indicative 

 of another. The terminal segment 

 is broadly rounded posteriorly, with 

 small but acute lateral angles. The 

 sides are almost parallel. 



The first four pairs of legs are 



directed anteriorly ; the last three Cleantis lleathii. x Of. 

 extend in a posteriordirection. There 



is no perceptible inequality in length. The dactyli are bifid. 

 I'wo specimens were sent by .Mr. Heath from Monterey 

 Bay, California. 



Type. No. 22577, U.S. N. M. 



centre of the head. The eyes are situated near the antero-lateral angle ; 

 postoccipilal lobe distinct ; nntennoe witli six sefrnients, <ir.*t very short and 

 nearly imnubile, second very .«hort and stout ; tlic third se'::nii'nl is equal in 

 lenpth to tlie second, but not so stout ; the fourth and tilth are of equal 

 length and about one third longer than the second and third segments. 

 The terminal segment or flagellum is ligliter in colour and is armed with 

 short bristles. The length of the antennae is equal to the length of the 

 head and tirst two thoracic segments. The anteuuulae extend to the 

 middle of the third segment of the antennae. The first segment is 



