AMI'IIIl'ODA. 273 



narrow, subequal to the next 2; 5th longer than 4th and not so long as 3rd; 

 2 distal spines on the hind margin of the 4th and a row of 4 on thai of the 5th joint. 

 Dactylus with a strong tooth behind the point (fig. 31. pp. 2 ), giving it the appearance 

 of being bifid (fig. 3k, Sp. Bate, loc. cit.). 



The rest of the perseopods arc altogether wanting. 



The 1st and 2nd uropods are subequal in extent, not quite reaching the middle of 

 the outer ramus of the 3rd pair; the rami are subequal; in the 1st they are rather 

 shorter and in the 2nd rather longer than the peduncles; all spinous on both margins, 

 with groups of terminal spines. 



Third uropods : peduncle little more than half as long as the outer ramus, which is 

 hut little longer than the inner and has 4 deep notches with fascicles of long spines 

 on the outer margin; both are truncate, with groups of long spines at the ends 

 (fig. 31. up. 3 ). 



Telson small, cleft to the base, and widely dehiscent, each division ending in a 

 double point with 2 long and 2 or 3 short spines (fig. 31. t.). 



I>axa's specimen w T as from the Fiji Islands. This species has a strong general 

 resemblance to the next, from which, however, it differs in the toothed epimeres of 

 the 3rd pleoii segment ; the relatively longer and more equal 3rd uropods ; the 

 different form of the dactyli of the 1st and 2nd peraeopods, &c. It is unfortunate 

 that the specimen had lost the last 3 pairs of peraeopods, as these have a very 

 distinctive character in M. scissimana. 



Maera scissimana ((Josta) Plate V., fig. 32. pp. 1 . 

 Gammarus scissimauus, A. Costa, 1853. 

 Msera truncatipes (White), Della Value, loc. lit., p. 725, Plate 2l'. 



West ( 'oast of ( 'evlon. 



Length 5 millims. 



This species forms a connecting link between the genera Maura and Elasmojnts. 

 The fore part, including the 3rd perseopods, is typical Mara, while the massive and 

 very spinous 4th and 5th perseopods (a character that is much more marked in Ceylon 

 than in Mediterranean specimens), and the comparatively short rami of the 3rd 

 uropods, resemble Elasmopus. Another peculiarity of the species is that the size 

 and shape of the hand of the 2nd gnathopods is much the same in males and 

 females. 



Maera tenuicornis (Dana) Plate V., figs. 33. 



Melita tenuicornis, Dana, loc. cit., p. 963, Plate 6G, fig. 5. 



Maera tenuicornis, Sp. Bate, ' Cat. Amph. Crust. Brit. Mus.,' p. 195, Plate XXXV., fig. 0. 

 Tow-net off Marichchikadi, 1st February, 1903. One male, and one young. 

 Segments of the mesosome and pleon without carinae or dorsal teeth. Hind 

 margin of the 3rd pleon epimere concave, smooth ; lower margin rather convex, 



2 N 



