476 PR0CEEDIN08 OF THE NATIONAL MUSEUM. vol. 52. 



LECANE ASPASIA, new species. 



Plate 40, figs. 6-8. 



The lorica is broadly oval and nearly parallel-sided anteriorly. 

 The anterior dorsal and ventral edges are comcident and slightly 

 convex; at the lateral edges they are produced as two small spines. 

 The dorsal plate is ovate and its anterior margin slightly narrower 

 than the ventral plate; its markings are moderately prominent and 

 fairly regular. The ventral plate is at its widest point of the same 

 width as the dorsal plate; it has a well-marked transverse fold 

 some distance in front of the foot. The longitudinal markings are 

 rather faint. The posterior segment of the body is broadly romided 

 posteriorly and projects slightly beyond the dorsal plate. The first 

 foot joint is nearly parallel-sided and projects over the movable 

 joint with a minute median rounded lobe. Tlie movable joint is 

 broad, rounded anteriorly and sharply constricted immediately m 

 front of the toes. The coxal plates are approximately triangular. 

 The toes are long, slender, and parallel-sided, ending m acutely 

 pointed claws. The body is of more than average depth. 



Total length 132 fi; length of lorica 94 ju; width of anterior spines 63 

 IX, length of spmes 4 /x; length of dorsal plate 82 n, width at widest 

 pomt 73 IX, width of anterior edge 54 /x; width of ventral plate 75 fx; 

 length of toes without claw 30 ix, length of claw 8 fx; depth of body 

 50 M. 



Type.— Cat. No. 16832 , U.S.N.M., is from a pool on alligator farm, 

 near East Lake Park, Los Angeles. 



With the large number of species belonging to this genus, differing 

 only in minor details, comparisons are of little value; the present 

 species has some resemblance to Lecane arcula Harring, but is broader 

 and stouter, as well as being considerably larger. 



Lecane curvicornis (Murray) = Cathy pna curvicomis Murray, 7. Not 

 previously recorded for the United States. 



Lecane liomemanni (Ehrenberg) = Cathy pna hornemanni (Ehren- 

 berg), 11. 



Lecane luna (M-iJ^^er) = Cathy pna lunxi (Muller), 1, 2, 6, 10, 11, 12. 



Monostyla bulla Gosse, 3, 5, 7, 12. 



Monstyla closterocerca Sclmaarda, 1, 3, 5, 12. 



Monostyla cornuta (Muller), 4. 



Monostyla hamata Stokes, 3. 



Monostyla lunaris Ehrenberg, 4, 10. 



Monostyla quadridentata Ehrenberg, 4, 10. 



Monostyla stenroosi Meissner = Monostyla hicomis Stenroos, not of 

 Daday. 3, 5. Not previously recorded for the United States. 



Lepadella acuminata (Ehrenberg), 1, 11. 



Lepadella patella (M tiller), 1, 3, 5, 6, 7. 



Lepadelh rhomboides (Gosse), 1,3. 



