1S77.] CRUSTACEA, CHIEFLY FROM SOUTH AMERICA. 661 



of f!!pll'-'°"^''"'''"- *^' r^*' ^"Sers slender, without strong teeth 

 on theirinner margins; the sides of the carapace below tS.i-Pr,l 

 hepatic spine, are nearly smooth. ^ ' ^ *^^ ^^^^''^^ 



5 iTnesfcilfferffromlhf '^'"7" ^^'".^''^- ^^^ ''^ '^ '^^'^^"^ ^ inch 

 '' lines; amers from the preceding in havine- thirtppn fpofV, „ *u 



upper margin of the rostrum, the three anfcaltee^ °° ^^' 



however, shorter than the palm, as in that species Thi^T L^ A 

 merely as a variety of P. brasiliensis. ^ ' ^ '"^ard 



Although It may be well, in the present state of m,r i-^^ i i 

 to maintain P. nattereri .u^ P 5.«];7S t' di^tincr spccfef tt 

 differences existing between them are very sh^ht scarcelv -^ffi • ^ 

 for specific distinction, if regard be had^to the identit!^of I^ !> 

 andthevariationsthatarekuLn to exist i^ tdiSlfof a ^sing.I 



of ?j!«'i '^"'^ ^^^ preceding species are omitted by Smith in his list 

 tX 1870j! 'P""' ""' '''■"'"^" ""'''^^'^ (Trani Conl'lJad h! 

 Pal^mon jelskii, sp. n. (Plate LXVII. fig. i.) 

 Slender smooth, with the lateral margins of the segments of thp 



S:^ of s?t ai!::;:^s ;^ ;:^£ -(^ ts^^^^ 



considerably above the dorsal surface orthecSjrc; apex 'sliSf 

 directed upward ; upper margin with 6-7 teeth^towardrthe fa e^ 

 and three small and crowded at apex, lower margin with 7 teeth' 

 Eyes la,-ge. Antennules with the peduncles reachino- considerab Iv 

 beyond their basa scales, but not to the extremity of the ba al sea e 



anin . 1 T^ ' '°"f ^^ ^^2^"'^ -ery slender, about as long as the 

 animal ; antennae with the peduncles shnrf r,r.f .^o-.!,- u ^/ 



than the animal. Second pair of legs filiform no tbtlpr t?.. ?i! 



''siMs:^:^,:-;- ^-* -« -- "-" 



This species is evidently very nearly allied to P. mnazonicus Heller 

 Sitzungsb. I. c. p. 418, pi. ii. fio- 4 5 n8fi2^ • hnf u iZ ' 5^''fr, 

 fewer teeth upon the lower margin of the iosLum wS' •" ^^'' 

 raised^at the extremity, and the far C^roT^hfsetnd ;:ir 



d tfers in the number of the teeth and in thA m^fd^p^^l',^^^^^^^ 

 of the joints of the second pair of legs. Proportion 



Two specimens are in the collection. 



Pal^mon gaudichaudii. 



Palismon gaudichaudii, M.-Edwards, Hist. Nat. Crust, ii. p. 400 



