24 THE HANCOCK PACIFIC EXPEDITIONS VOL. 2 



of reporting upon this collection thanks are hereby returned to the 

 sponsor and the officials of the expedition and to Dr. Manter who 

 collected the specimens. 



CALIGOIDA 

 CALIGIDAE 



Caligus balistae Steenstrup & Liitken 



Caligus balistae Steenstrup and Liitken, Kong. Danske Vid. Selsk. Skrift., ser. 5, 



vol. 5, p. 356, pi. 1, fig. 1, 1861. 



A single male was washed from the gill chamber of an unidenti- 

 fied fish at Albermarle Island. The genital segment and abdomen of 

 this specimen differed somewhat from the figures hitherto published 

 as can be seen in plate 3, fig. 1. The abdomen is relatively shorter, the 

 caudal rami are semicircular, and the lobes at the posterior corners 

 of the genital segment nearly reach the distal end of the caudal rami. 



Caligus bonito Wilson 

 Caligus bonito, Wilson, Proc. U. S. Nat. Mus., vol. 28, p. 589, pi. 13, 1905. 



A single female was taken from the gill cavity of a grouper pe- 

 culiar to the Galapagos Islands, Cratinus agassizii Steindachner, at 

 Tagus Cove, Albermarle Island. A single male was found on the 

 red snapper, Lutianus novemfasciatus (Gill), at Tangola, Mexico, 

 This species was originally discovered in the Woods Hole area and 

 has been reported by Brian from the coast of Mauretania and by 

 Yamaguti from Japan. These specimens add two new hosts as well 

 as two new localities and indicate that the species is cosmopolitan. 



Caligus chorinemi Kollar 



Caligus chorinemi Kollar, mss. Krceyer, Natur. Tidssk. 3 raekke, 2 bind, p. 67, pi. 



5, fig. 1, a-h, 1863. 



A single female from an unidentified fish at Albermarle Island; 

 3 females and 3 males from the gills of Seriola dorsalis (Gill), at 

 Port Culebra, Costa Rica; 3 females and 3 males from the same 

 host at Port Utria, Colombia. The species was first described by 

 Krceyer from female museum specimens taken off" the coast of Bra- 

 zil. Both sexes were afterwards obtained from the same locality by 

 Heller and the male was described and figured. But during the long 

 interval since then the species has never been reported by any in- 

 vestigator and its validity had become doubtful. These specimens 



