380 



BULLETIN OF THE BUREAU OF FISHERIES. 



recognized as agreeing with tin- specimen collected on July 18, and unfortunately the preserved 

 material does not allow of a comparison, part of it having been lost or destroyed by accident." 

 Fig. 216 was sketched from one of the specimens collected on Aug. 11. Dimensions of living specimen, 

 slightly compressed, in millimeters: Length 1.8; diameter at anterior end 0.12; maximum diameter 

 0.27; oral sucker, length 0.15, breadth 0.10; pharynx, length 0.09, breadth 0.07; diameter of genital 

 sucker 0.11. Another specimen measuring 2.25 in length had other dimensions agreeing almost 

 exactly with the above. Ova, 0.18 by 0.14. 



26. Dicliddpkora sp. 



1902. — Aug. 12, 1, small, from gills. This specimen was very fragile, the posterior finger-like 

 processes appearing to be somewhat macerated. Dimensions, in millimeters: Length 1.86, length 

 exclusive of posterior sucker 1.28; diameter at anterior end 0.08; maximum diameter of body 0.52, of 

 sucker region 0.96; diameter of one of the 8 small suckers 0.13. 



COPEPOD PARASITES. 



27. Ergasilus sp. From gills. 



1902. — Aug. 18, 2, females. Thorax yellowish on border, reddish in center, abdomen red; posterior 

 appendages yellowish, transparent, tinged with pink at the base; egg chains lavender, very long. 



Tln-se specimens, together with others collected last year, were sent to Prof. C. B. Wilson, who 

 informs me that he finds in the lot the two genera Bomolochus and Ergasilus. 



Lagodon rhomboides, Pin-fish. 



tCANTHOCEPHALA. 



1. Echinorhynchus prislis Rudolphi. 



19111. — July 12, a single specimen, female, is referred provisionally to this species; from intestine. 

 Color yellowish white, proboscis anil anterior end of body each partly inverted. Dimensions, in 

 millimeters: Length 11, of proboscis 1.22, of sheath 2, of lemnisci 1.68; greatest diameter 0.53, of 

 proboscis at base 0.11, middle and apex 0.15, of lemnisci 0.04, of ovarian masses 0.16 and 0.11 in the 



«Iti searching for these specimens in the vial in which they had been placed two slender specimens of Distomwm 

 p< ctinalum were found, which had not been noted from this host at the time of collecting. They are not given a number 

 in this report, since it is possible that they may have been placed in the vial by mistake. 



