ini'i:iai)a:. 291 



5. Lestrigonus Fabreii. (Plate XLVIII. fig. 6.) 



Lestri^onus Fabivii, Edu-ards, Hist. <lcs Crust, iii. p. 82. pi. 30. f. 18. 

 Daua, U. S. Exphn: Erjx-d. p. 98.5. pi. 07. 1". 10. 



" Superior antennae longer than the body ; peduncle short and stout ; 

 first joint large ; second short ; thii'd* as long as the first, and 

 tapering to the extremity, furni.shed upon the inferior margin with 

 a fringe of fine hail's ; the two succeeding articuli of the flagellum 

 are very .small ; the rest (which are man}-) are nearly of the same 

 length. Inferior antenna} nearly of the same length as the su- 

 perior ; peduncle large, conical, having three joints exposed, and 

 terminating in a long slender flageUum similar to that of the 

 superior. Manchbular appendage small. First pair of gnathopoda 

 veiy short and oylindricalt ; second pair of the same form as in 

 Hiiperia. Basa of the three posterior pairs of pcreiopoda large and 

 lamellar. 



" Length 5 lines. 



" Hah. Taken by M. Fabre in the Indian Ocean." — Edwards. 

 Sooloo Sea {Dana). 



6. Lestrigonus ferns. (Plate XLVIII. fig. 7.) 

 Lestrigonus ferus, JJana, U. S. Explor. Exped. p. 982. pi. 07. f. 0. 

 " Cephalon rounded in front, and hardly flattened. Pereion tumid ; 

 anterior segments indistinct. Antennae about as long as the body ; 

 upper a little the shorter. Three posterior pairs of pcreiopoda 

 subequal ; basa rounded at the apex ; dactyla half as long as the 

 carpi. 

 " Length -i-th of an inch. 



"Hah. Atlantic, in latitude 2°N. to 1°S., longitude 18°tol7°W. 

 Collected on October 30th, also on November 3rd and 5th, 1S3S." 

 — Daiui. 



7. Lestrigonus fuscus. (Plate XLVIII. fig. 8.) 

 Lestrigonus fuscus, Dana, U. S. Exj)lor. Exped. p. 983. pi. 67. f. 8. 

 " Pereion seven-jointed ; first segment nearly concealed. Telson 

 separated by a suture from, and half narrower than, the sixth seg- 

 ment of the pleon. Superior antennae as- long as the body : infc- 



* I take tlie part here called the lliird joint of the jiedunclc to be tlio same ns 

 that wiiich, in other species, I have called the first articnlus of tlie flan;ellinn. 

 The tliird, joint of the peduncle is always, like the second, very sliort and iinjier- 

 fectly visible. 



t Dana says that the three anterior segments of ll)e pleon are coalesccnl togotlier 

 doi-sa'ly; and tliat the gnathojjoda are uniform, tlio carpus being produced lo 

 half the length of the propodos. 



U2 



