FOOD OF YOUNG WINTER FLOUNDERS. 7 



STATION 9. HEAD OF GREAT HARBOR, JULY 11, 1916. 

 [Bottom, sandy.] 



Length, under 25. — Length, 24. Number examined, 1. Food: Ampliipods, 10; 

 copepods, 10; debris, 80. Parasites: Distomes, 27. 



Length, 25 to 50. — Maximum length, 50; minimum, 26; average, 33.7. Number 

 examined, 10. Food: Amphipods, 18; annelids, 25.6; copepods, 17.2; larval Crustacea, 

 trace; debris, 39.1 Parasites: Distomes in eacli fish, maximum, 154; minimum, 3; 

 average, 46.9. One fish (50 mm. in length) had nothing in the alimentary canal except 

 distomes, of wliich there were 154 in the stomach. 



Length, 51 to 15. — Maximum length, 57; minimum, 51; average, 54.3. Number 

 examined, 3. Food: Amphipods, 81.6; annelids, 6.7; copepods, 6.7; d^^bris, 5. Para- 

 sites: Distomes in each fish, maximum, 125; minimum, 30; average, 92.6. 



STATION 10. TARPAULIN COVE, JULY 14, 1916. 

 [Soft bottom, with eelgrass.] 



Length, 25 to 50. — Maximum length, 50; minimum, 44; average, 48.1. Number 

 examined, 7. Food: Ampliipods, 82.1; coix>pods, trace; i.sopods, 2.5; ostracodes, 

 trace; d6brLs, 15.3. 



Length, 51 to 75. — Maximum length, 55; minimum, 5-t. Number examined, 2. 

 Food: Amphiiwds, 72.5; isopods, 2.5; debris, 25. 



ST.\TIO.V 11. MENEMSHA Bir.HT, JUL\ II, 1916. 



[Bottom, .sand and eolgras.s.] 



Length, 101 to 125. — Maximum length, 120; minimum, 101; average, 109. Number 

 examined, 5. Food: Ampldpods, 74.2; annelids, 7.2; bivalve mollusks, 1.6; insect 

 larvae, 0.4; d^'^bris, 16.4. Parasites: Distomes, 0.6; Acanthocephala, 1 in one fish; 

 nematodes, 0.6; Sporozoa, 1 cyst on intestine of one fish and a few scattering cysts 

 on the intestine of another. 



ST.VTION 12. LAGOON POND, VINKYARD HAVKN, JULY 17, 1916. 

 [Sandy bottom.) 



Length, 25 to 50. — Maximum length, 50; minimum, 30; average, 43.1. Number 

 examined, 10. Food: Amphipods, 18.8 j annelids, 49.2; copepods, 0.1; insect larvae, 

 0.1; debris, 31.9. Parasites: Distomes in each fish, maximum, 400 (approximate); 

 minimum, 2; average, 70.7. 



Length, 51 to 75. — Maximum length, 56; minimum, 54; average, 55. Numl>er 

 examined, 4. Fcwd: Amphipods, 14.3; annelids, 51.3; insect larva?, 0.2; ostracodes, 

 trace; debris, 34.2. Parasites: DLstoraes in each, average, 39.2. 



.STATION 13. HEAD OF GREAT HARBOR, JULY 20, 1916. 



[Bottom, sand and celgra,s.s.) 



Length under 25. — Maximum length, 24; minimum, 22. Number examined, 2. 

 Food: Amphipods, 5; annelids, 40; copepods, 12.5; larval Crustacea, 7.5; ostracodes, 

 trace; debris, 35. Parasites: Distomes, 25. 



Length 25 to 50. — Maximum length, 42; minimum, 26; average, 33.1. Number 

 examined, 9. Food: Amphipods, 45; annelids, 8.3; copepods, 9.6; gastropod mollusks, 

 trace; ostracodes, 0.1; d^'liris, 36.9. Para-^^ites: Distomes in each fish, 38.3. 



Length, 51 to 7.5. — Maximum length, 59; minimum, 58. Number examined, 3. 

 Food: Amphipods^ 13.3; annelids, 50; young fi.fh (80 per cent in one fi.sh), 26.6; 

 debris, 10. Parawites: Distomes in each, 93.3. 



STATION 14. HEAD OF GREAT HARBOR, JULY 22, 1915. 

 [Sandy bottom.] 



Length, 25 to 50. — Maximum length, 50; minumum, 45; average, 47.6. Number 

 examined, 3. Food: Amphif)ods, 15; annelids, 61.6; copepods, 0.3; isopods, 1; ostra- 

 codes, 0.3; dc'jbris, 21.6. Parasites: DisUjmes, 2.3. 



Length, 51 to 75. — Maximum length, 75; minimum, 51; average, 63.5. Number 

 examined, 17. FfK)d: Amphipods, 12; annelids, 72; coi)epods, 0.1; in.sect larvse, 

 trace; iscjpofls, 0.6; ostracodes, 1.3; univalve mollusks, 0.1; d6bris, 14. Parasites: 

 Distomes, 6.2; nematodes, 1, in one fish. 



