CESTODES FROM FISHES — LINTON 



437 



Specimens from Lophius piscatorius. — Vinal Edwards' notes yield 

 many dates, extending over a long series of years, on which whiting 

 were recorded in the stomach contents of the goosefish. Since C. 

 crassiceps is of frequent occurrence in the whiting, it would be sur- 

 prising if this cestode were not found in the goosefish. Following is 

 the record of finds of this cestode m the goosefish: 



November 24, 1905: 1 fish examined, 4 with scoleces, longest 

 70 mm. 



July 6, 1910: 5 fish examined, 3 cestodes, maximum length 45 mm. 



May 15, 1913: 10 fish examined, 1 with scolex, length 18 mm. 

 Stomach of fish full of shad, hake, whiting, dogfish, and squid. Vinal 

 N. Edwards. 



June 6, 1914: 1 fish examined, 2 scoleces and fragments, each 

 about 8 mm. long, one with ripe segments. 



June 15, 1914: 3 fish examined, 4 cestodes, maximum length 72 

 mm., breadth 2 mm.; scolex breadth 1.12 mm. Measurements in 

 balsam: Length 42 mm.; maximum breadth 1.75 mm.; scolex length 

 0.98 mm., breadth 0.94; first segment length 0.07 mm., breadth 0.98 

 mm.; median segments, length 0.09 mm., breadth 1.75 mm.; posterior 

 segment length 0.63 mm., breadth 0.77. Ova thin-shelled and 

 collapsed, best examples about 0.072 by 0.033 (pi. 61, figs. 17, 18) 

 (U.S.N.M. no. 8896). 



Specimens from Merluccius bilinearis. — Recorded previously by 

 me ^^ under the name Dibothrium crassiceps (Rudolphi) from this fish. 

 This cestode was collected from whiting at Woods Hole in all the 

 years except one from 1903 to 1928, inclusive, as follows: 



May 



June 



July 



August 



September 



October 



November 



Whiting were examined but no cestode: 

 found, as follows: 



August 



September 



October 



November 



Number ( 

 dates 



Number of 

 fishes 



25 



2 



34 



64 



1 



132 



272 



260 

 25 

 60 



114 

 2 



141 



391 



M Bull. U. S, Fish Coram., vol. 19, p. 473, figs. 266-268, 1901; Bull. U. S. Bur. Fish., vol. 31, p. 585, 1911. 



