1898.] FEOM THE SOUTH PACIFIC. 1001 



In the Eotiima collection were : — 



1. Metajpenceus commensalis, n. sp. 



2. Stenopus hispidus (Olivier). 



3. Periclimenes sjpinicierus (Ortmauu). 



4. Periclimenes rotumanus Borradaile. 



5. Conchodytes meleagrince Peters. 



6. Saron marmoratus (Olivier). 



7. Alpheus strenuus Dana. 



• 8. Alpheiis macrochirus Kichters. 

 9. Alpheiis Icevis Kandall. 



10. Alpheus frontalis Say. 



11. Alpheus pachychirus Stimpson. 



12. Alpheus gracilipes Stimpson. 



13. Paribacus antarcticus (liumph.). 



14. Panidirus penicillatus (Olivier). 



15. Callianidea typa H. M.-Edwards. 



From Fiji are : — 



1. Garadina luycJci Hickson. 



2. Caradina vitiensis, u. sp. 



3. Periclimenes vitiensis Borradaile. 



4. Palcemon lar Fabricius. 



5. Palcemon sp. 



I proceed to the consideration of the several species. 



Tribe PEN^IDEA. 

 Family P E w jE i n .5;. 

 Subfamily PAEAPEJj-iErNjE. 

 Genus Metapenveus "W.-Mason <fc Alcock, 1801. 

 1. Metapen^tjs coMMEis'SALis, n. sp. (Plate LXIII. figs. 1-1 6.) 



Definition : — " A Metapenceus with the rostrum straight, bearing 

 8 teeth above and none below, fringed underneath with long hairs, 

 and reaching to the middle of the second joint of the peduncle of 

 the first antenna ; carapace bearing a median spine at the base of 

 the rostrum, and infraorbital, hepatic, and pterygostomian spines ; 

 first antenna with the penultimate joint of the peduncle longer 

 than the last joint, flagella subequal (?), not so long as the last two 

 joints of the peduncle (?) ; second antenna with the scale almost 

 as long as the peduncle of the first antenna ; third maxilliped 

 reaching the end of the first joint of the peduncle of the first 

 antenna ; first pair of legs rather stout, with somewhat swollen 

 chelse, not reaching end of ante-penultimate joint of third 

 maxilliped ; second and third pairs more slender, with elongate 

 chelae, second reaching middle of penultimate joint of third 

 maxilliped ; third exceeding third maxilliped ; fourth and fifth pairs 

 subequal, reaching middle of wrist (carpopodite) of third pair; in all 



Pfioc. ZooL. Soc— 1898, No. LXVI. 06 



