180 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



node on medial sm-face bearing 2 spinules instead of 1, distal 3 nodes 

 not as prominent as in female. Maxillae and maxillipeds situated on 

 irregular, apron-like projection, posterior half of projection separated 

 from anterior half by distinct ridge. Maxillae (fig. 67/) well developed, 

 2-segmented, situated on anterior half of projection. Both maxillae 

 connected at inner proximal end by posteriorly bifiu-cate band of heavy 

 sclerotization. First segment well developed, with heavily sclerotized 

 ring at proximal end, duct from maxillary gland visible inside proximal 

 inner sui'face of appendage. Second segment fused to clawlike 

 terminal process. 



Maxilliped (fig. Q7g) 2-segmented, situated on posterior half of 

 apron-like projection. First segment of maxilliped elongate, with 

 3 adhesion surfaces on inner siu'face. Adhesion sm'faces formed by 

 numerous minute, padlike or hook-shaped projections (fig. 67A). 

 Proximal adhesion sm-face associated with heavily sclerotized ridge 

 and pad, medial surface associated with swelling, swelling with 

 spinule; distal adhesion sm'face associated with swelling on distal 

 inner sm-face. Second segment elongate, with adhesion process 

 on distal half of posterior siu*face; terminal process short, clawlike, 

 distinct from segment. 



Discussion. — The Hawaiian specimens differ from the description 

 given by Shiino (1956b) primarily in the characteristics of the male: 

 the shorter cephalothorax and longer trunk, the presence of 3 instead 

 of 2 tuberculated bulges (adhesion pads) on the first segment of the 

 maxilliped, and the presence of 2 spinules on the exopodite of the 

 antenna. Whether or not these differences warrant specific con- 

 sideration remains questionable. The similarity of the female and 

 the males, with the exceptions here noted, and the broad distribution 

 of the parasite and the pelagic hosts that it characteristically 

 parasitizes suggest, to the present author, that these differences are 

 due to intraspecific variation. 



Brachiella regia, new species 



Figures 68, 69 



Material. — Two females and 2 males from the gill arches of 

 Lampris regius (Bonnet) captured in the Oahu region and examined 

 by Walter Fujii, at the Honolulu Aquarium. One of the females 

 (USNM 112936) has been designated as the holotype, 1 of the males 

 (USNM 113033) as the allotype, and the remaining male and female 

 (USNM 113034) have been designated as paratypes. 



