10 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. Gl. 



Examinations of R. ocell-afa in which no examples of P. loliginis 

 were found : On eleven dates in April, 61 fish examined ; thirty dates 

 in May, 203 fish examined ; four dates in June, 6 fish examined ; two 

 dates in July, 9 fish examined ; eight dates in August, 16 fish exam- 

 ined ; six dates in September, 138 fish examined ; sixteen dates in No- 

 vember, 75 fish examined, 



Squid were recorded in the food on one date in April, five in May, 

 two in June, one in August, two in September, seven in October, and 

 one in November, not including dates on which P. loliginis was found. 



6. Raja laevis. 



The great majority of the examinations here recorded were made 

 by Vinal N, Edwards. 



May 10, 1904; 5; stomachs filled with crabs and razor clams; 25 

 larval cestodes, longest 20 mm. 



May 12, 1904; 1 ; stomach filled with alewife, crabs and razor clams ; 

 6 larval cestodes. 



May 13, 1904; 1; 2 larval cestodes. 



May 9, 1914 ; 2 ; crabs in stomach ; 1 larval cestode, length 20 mm. 



Summary. — Phyllohothrimn loliginis was found in Raja laevis on 

 four dates in May, 9 fish examined, 34 cestodes found. 



Examinations of R. laevis in which no examples of P. loliginis 

 were found: April, seven dates, 14 fish examined; May, twenty-three 

 dates, 36 fish examined; June, three dates, 3 fish examined; July, 

 one date, 3 fish examined; August, three dates, 11 fish examined; 

 September, two dates, 3 fish examined; October, twenty dates, 53 

 fish examined ; November, five dates, 9 fish examined. 



Squid were recorded in the food on nine dates in May, two in 

 June, one in July, one in September, four in October, and one in 

 N ovember. 



7. 2'hminus thynnis. 



June 29, 1915 ; 1 ; stomach contained 26 squid {Loligo pealil) , num- 

 ber estimated from " pens" which ranged in length from 110 to 245 

 mm., also the vertebrae and ribs of a small fish. Ten specimens of 

 P. loliginis found, 9 in the stomach and 1 in the intestine. Some of 

 these allowed to lie in sea water were still active on July 1, and some 

 movement in the scolex and neck was discernable on July 3. 



Examinations of Tkunnus thynnis in which no examples of P. 

 lologinis were found: On two dates in June, 2 fish examined; two 

 dates in July, 2 fish examined; two dates in August, 2 fish examined; 

 one date in September, 2 fish examined. 



Food recorded : Squid, butterfish, herring, and mackerel ; algae and 

 eelgrass reported by Vinal N. Edwards from two small horse mackerel 

 examined in September. Squid recorded on one date in July. 



8. Xyphias gladius. 



July 15, 1904; 4; fish taken on the 14th. Food: Fish and squid. 

 One specimen of P. loliginis was found which was somewhat con- 



