186 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



The female of Brachiella regia shows some affinities with species 

 such as B. concava Wilson, 1913, and B. gracilis Wilson, 1908, in the 

 nature of the cephalothorax and maxUlae. Additionally, the short 

 posterior processes of the female are comparable with those of B. 

 pteroplateae Yamaguti and Yamasu, 1959, B. bera Yamaguti, 1939c, 

 and B. mitrata Wilson, 1915. The combination of the long reflexed 

 cephalothorax, the long maxillae, the short posterior processes, and 

 the large genital process is, however, unique. 



The male shows some affinities with the male of B. thynni Cuvier, 

 1829, in the general nature of the body. The appendages of the 

 cephalothorax, however, are strongly reminiscent of those of Andro- 

 poda lampri (Scott, 1901), although the mandible has one denticu- 

 lation that Kabata (correspondence) terms a secondary tooth, whUe 

 the denticulations in A. lampri are homogeneous. There is some 

 variation in the denticulation of the mandible of both the female and 

 the male, the female possessing 8-10 primary denticulations, the male 

 "secondary tooth" being slightly larger in the unfigured male than in 

 the figured male. Further, the posterior end of the male of B. regia 

 does not protrude as in Andropoda lampri, and the posterior processes 

 are not as distinct and do not project past the thick, heavily sclero- 

 tized cuticle. 



The species name is derived from the name of the host, Lampris 

 regius. 



Family Naobranchiidae 



Naohranchia Hesse, 1863 



Diagnosis. — Female: Cephalothorax elongate, vermiform; trunk 

 swollen, anterior end including maxilla-bearing segment. Abdomen 

 and caudal rami usually distinct although sometimes covered by 

 egg masses. Eggs enclosed in membranous extension of cuticle, 

 enveloping posterior and at least part of lateral surface of trunk. 

 Antennule 2-5 segmented; antenna biramous. Mandible rodhke. 

 Maxillule bipartite, with or without palp; maxilla fofiaceous, usually 

 with muscle bands extending length of appendage, forming organ 

 of attachment that envelops gill filaments of host. Alaxilliped 

 2-segmented, second segment fused with clawlike terminal process. 

 Oval adhesion pads or cup-shaped structures may be present adjacent 

 to maxillipeds. 



Male: See Yamaguti, 1963, p. 303. 



Naohranchia species 



Figure 70 



Material.— One female (USNM 112937) from gill cavity of 

 spotted moray eel from Honolulu Aquarium. 



