FOOD OF YOU:N"r, WINTER FT.OU:??DEES. 11 



Length, 76 to 100. — Maximum length, 90; minimum, 85. Number examined, 2. 

 Food: Amphipods, 75; annelids, 20; debris, 5. Parasites: Distomes, 10. 



Length, 101 to 125. — Length, 104. Number examined, 1. Food: Amphipods, 2; 

 annelids, 88; debris, 10. Parasites: Distomes, 2. 



Length, 126 to 1-50. — Length, 132. Number examined, 1. Food: Ampliipods, 1; 

 annelids, 95; debris, 4. 



STATION 29. MENEMSHA BIGHT, SEPTEMBER 10, 1915. 



[Sandy bottom with eelgrass; depth of water, G feet: temperature, GS° F.] 



Length, 51 to 75. — Length, 70. Number examined, 1. Food: Amphipods, 4; anne- 

 lids, 48; debris, 48. Parasites: Distomes, 5; nematodes (Filaria), 2. 



Length, 126 to 150. — Maximum length, 150; minimum, 140. Number examined, 2. 

 Food: Amphipods, trace; annelids, 50; bivalve molluske, 2.5; d(5bris, 47.5. Para- 

 sites: Distomes, 1; Aranthoce|)liaia, 1 in one fish. 



Length, 151 to 175. — Maximum length, 1(52; minimum, 152; average, 156.;?. Num- 

 ber examined, 3. Food: AmphijK)ds, 9; annelids, 26.3; bivalve mollusLs (broken 

 shells, pro])ably introdured witli aiuielids), 3.3; slirinip, 10.6; debris, 50.6. Para- 

 sites: Distomes, 2; nematodes, 1 small Filaria in one fish. 



.<!T.\TIOV 30. GREAT TIARBOR, SEPTEMBER 14, 1915 



[Sandy bottom.] 



Length, 51 to 75. — Maximum length, 72; minimum, 62; average, 66.5. Number 

 examined, 4. Food: Amphipods, 69.5; annelids, 10; ostrarodes, trace; debris (sjind, 

 with annelid setae), 19.5. Parasites: Distomes, 1.5; sporocysts, few, 0.5 mm. in 

 diameter, on int<'stine of one fish. 



Length, 76 to 100. — Maximum length, 96; minimum, 84; average, 88.3. Number 

 examined, 3. Food: AmphijKjds, 14.3; annelids, 69.6; Cumacea, 1.3; d(^bris (some red 

 alga in one fish), 14.6. Parasites: Distomes, 1. 



Length, 1^6 to l.'tO. — Length, 128. Number examined, 1. Food: Amphipods, 15; 

 debris (sand, with annelid eetae, alimentary canal nearly emj)ty), 85. Parasites: 

 Sjiorozoa, large numbers of cysts, 1 mm. and less in diameter, on intestine. 



.STATION 31. EEL POND, SEPTEMBER IS, litl5. 



[Bottom, mud and eelcn"a.s«: temperature of water, 70* F.J 



Length., 51 to 75. — Ijcngth each, 70. Number examined, 3. Food: Amphipods, 

 91.7; annelids, 8.3. Parasites: Distomes, 1 in one fisli; nematodes, 1 in one fish; 

 Sporozoa, wall of intestine of one fish thickly be.set vsifli small cysts, 0.4 mm., more or 

 less, in diameter, and 1 cyst, 2 mm. in diameter, on intestine of another. 



Length, 76 to 100. — Maximum length, 90; minimum, 87; average, 98. Number 

 examined, 3. Food: Amj)hij)ods, 97.6; bivalve mollusks. 0.3; ostracodes, 2. Para- 

 sites: Distomes, 2. 



STATION 32. EEL POND, OCTOBER IS, 1915. 

 [Muddy bottom; temperature of water, .15° F.] 



Length, 101 to 125. — liCngth, 104. Number examined, 1. Food: Amphipods, 80; 

 annelids, trace; bivalve mollusks, trace; ostracodes, trace; dc^'bris, 20. Parasites: 

 Nematodes, 1 (Filaria). 



Length, 126 to /.30.— Maximum length, 150; minimum, 130; average, 136.6. Num- 

 ber examined, 3. Fwd: Ami)hiiM)ds, 53.3; annelids, 3.3; bivalve mollusks, 0.3; 

 ostracodes, 0.3; d^'-bris (some vegetable material, scales and bits of muscle tis.sue of 

 fish, and cru.stacean fragments), 42.6. Parasites: Nemat^)des, 1 (Filaria) in one fi.sh; 

 Sr)orozoa, large numbers of cysts on intestine of each fish, 1 mm. and less in diamet<T. 

 The alimentary canal of one fish, 150 mm. in length, was nearly empty; the tissue of 

 the intestinal wall was almost completely rejjlaced by cysts. In eacli case the cysts 

 were rif)s«;ly crf)wded tfjgetlicr and the intestuie was easily broken. 



Length, /</ to 115. — Maximum hiiigtli, J5H; minimum, J55. Number examined, 2. 

 Food: Amiiiiii>odH, J2.5; annelids, 30; ostracodes, trace; debris, 67.5, 



