324 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



Location. — Intestine. 



Discussion. — The previously recorded host for this species is 

 Sicyogaster maeandrica (= Caularchus 7naeandricus) , Bodega 

 Bay, Calif. 



This species is distinguished from H. nimia in that the vitelline 

 follicles (v, pi. 13, fig. 10) are interrupted near the acetabulum, 

 the genital pore is anterior to the intestinal bifurcation, and the 

 ovary (ov) has four rather than three lobes. These distinctions 

 held for all of about 37 specimens from Gibbonsia and almost all 

 of 20 specimens from Clinocottus, although rarely the vitellaria 

 were continuous on one side. Three specimens from Clinocottus 

 confuse the picture somewhat. These have continuous vitellaria, a 

 genital pore posterior to the bifurcation, and an ovary either 

 with four lobes or with lobes too indistinct to count. Perhaps these 

 specimens are H. nimia, which is already known to have a wide 

 host and geographical distribution and has been reported from 

 the Pacific (Galapagos Islands). However, numerous specimens 

 of H. nimia from both Tortugas, Fla., and the Galapagos Islands 

 agree in that the three or four primary lobes of the ovary are 

 secondarily lobed and the testes are not rounded as in H. eloyigata 

 but wider than long and irregular in outline, sometimes almost 

 lobed. For the present it seems best to consider the round testes 

 and the 4-lobed ovary as characters distinguishing H. elongata 

 from H. nimia. However, a conspicuous interruption of the vitel- 

 line follicles and a more anterior genital pore seem to be at least 

 almost always characteristic of H. elongata and perhaps never 

 occur in H. nimia. 



Genus GENITOCOTYLE Park, 1937 



GENITOCOTYLE ACIRRATA Park, 1937 



Hosts. — Damalichthys vacca Girard,^ pileperch; Umbrina ron- 

 cador Jordan and Gilbert,^ yellowfin croaker. 



Location. — Intestine. 



Number. — One in a single specimen of each host species. 



Discussion. — A specimen of G. acirrata sent to one of us (Man- 

 ter) several years ago was available for comparison. It is believed 

 that Park's so-called ''pars prostatica" is actually a thick-walled 

 cirrus with circular muscles especially conspicuous. Thus, the name 

 given to the species is probably inappropriate. 



This species is known previously only from Holconotus rhodo- 

 terus Agassiz, the porgy or surfperch, from Dillons Beach, Calif. 



' New host record. 



