230 REPORT OF THE COMMISSIONERS OF 



Th€ maxilla reaches to below the middle of the pupil. The mandible projects -f-^ of an 

 inch when the mouth is closed. The diameter of the eye is contained 523 times in length of 

 head. The stomach was empty, but insect remains were voided from the vent. 



Colors. — About twenty oblique, interrupted, dark bands on the body. A narrow oblique dark 

 band under the eye and four rather large dark blotches on the cheek and opercle. Pectorals, 

 ventrals and anal orange. A tinge of orange on the dorsal and caudal. General color 

 olivaceous gray, with golden reflections ; lower parts creamy white. Iris lemon mingled with 

 pale brown. Peritoneum silvery. 



All the pickerels are liable to fungus attacks without apparent cause, but, as a 

 rule, they can be cured by the salt water treatment. Their food consists of small live 

 killifish, which they approach slowly and deliberately until within fi\-e or six inches, 

 when they rush, seize, and stop as abruptly as if stopped by an obstruction. 



54. Lucius reticulatus {Lc Suair). Chain Pickerel. — Living pickerel were 

 sent from Canandaigua Lake by Mr. James Annin, Jr., and small examples were 

 seined in the Bronx. Others were given to the Aquarium by Charles A. Shriner, 

 Chief Game and Fish Protector of New Jersey, and Professor Ulric Dahlgren of 

 Princeton University. The chain pickerel is always hard 10 keep in good condition in 

 captivity, but the losses here have been very small owing to the success of the salt 

 water treatment for fungus. The fish .spawned in their tank in June, 1897, and )'oung 

 were hatched naturally, but they died when about three-quarters inch long because 

 they could not be induced to feed. The feeding habits of this pickerel are the same 

 as stated concerning L. amcricamis 



55. Lucius lucius {Linmrus). PiKE. — About July i, 1896, a fresh specimen was 

 sent for identification by Mr. Annin from Silver Lake, Wyoming County, N. Y. He 

 says the pike is not found in Canandaigua Lake. Curiously enough, the Aquarium 

 has never y-et had a living example. 



56. Lucius masquinongy immaculatus {Garrard). Unspotted M.\scalonge. 

 — -The examples of unspotted mascalonge received at the Aquarium were from 

 Chautauqua Lake, New York, which belongs to the Ohio River drainage system. It 

 appears that the typical spotted form also inhabits the Ohio basin, but occurs rarely. 

 Mr. Annin sent one individual December 4, 1895, and two on May 4, 1896; from 

 these three were obtained the following notes and measurements in inches: 



