8 U. S.. BUREAU OF FISHERIES. 



Length, 101 to 125. — Length, 120. Number examined, 1. Food: Amphipods, 20; 

 annelid.-*, 30; ostracodes, 5; univalve moUusks, 20; debris, 25. 



STATION 15. GREAT POND, KAST FALMOUTH, JULY 22, 1915. 



[ Low tide, 1 to 2 feet of water; bottom, sand and mud with clams; seining done along edge of eelgrass half- 

 way up the pond; water clear, 78° F.; fioimdcrs, abundant.] 



Length, 51 to 75. — Maximum length, 72; minimum, 52; average, G6. Number 

 examined, 9. Food: Amphipods, 20; annelids, 50; Cumacea, trace; isopods, G.6; 

 debris, 23.4. Parasites: Distomes in each fish, average, 22.6. 



Length, 76 to 100. — Maximum length, 90; minimum, 78; average, 88.2. Number 

 examined, 4. Food: Amphipods, 15; annelids, 51.2; isopods, 20; debris, 13.8. 

 Para,sites: Distomes in each ti.sh, average, l().2. 



Length, 101 to 125. — Maximum length, 125; minimum, 105; average, 115. Number 

 examined, 3. Food: Amphipods, 18.3; annelids, 58.3; isopods, 3; ostracodes, 0.3; 

 debris, 20. Para.sites: Distomes in each fish, average, 12.6; Sporozoa, cysts in intesti- 

 nal wall of one fish (length, 125 mm.). 



Length, 126 to 150. — l/ength of each, 135. Number examined, 2. Food: Amphi- 

 pods, 5; annelids, 87.5; clams, 6.2; del)ris, 1.2. Parasites: Distomes in each fish, 

 average, 1.5; Sporozoa, numerous cysts in intestinal walls of one fish. 



Length, 151 to 175. — Maximum length, 175; niinimum, 155; average, 168.3. Num- 

 Ijer examined, 3. Food: Annelids, 65; clams, 16.6; debris, 18.3. Parasites: Dis- 

 tomes in each fish, average, 15.3; Sporozoa, cysts very numerous in intestinal wall 

 of one fish. 



.STATION 16. EEL POND, JULY 25, 191G. 



[Bottom, eelgrass and mud.] 



Length, 51 to 75. — Maximum length, 72; minimum, 58; average, 59.8. Number 

 examined, 5. Food: Amphijiods, 51.2; annelids, 1; Cumacea, 13; debris, 34.8. Para- 

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



STATION 17. CUTTYIIUNK, JULY 26, 1916. 

 [Bottom, sand and eelgra,ss.] 



Length, 26 to ,50.— Maximum length, 50; minimimi, 36; average, 43.7. Number 

 examined, 7. Food: Amy)hipods, 38.5; annelids, 22.8; copepods, 5.3; ostracodes, 0.8; 

 d61)ris, 32.4. Parasites: Distomes, 6.5. 



Tjcngth, 51 to 75. — Maximum length, 75; minimum, 52. Num))er examined, 2. 

 Food: Amphipods, 56; annelids, 25; insect larva?, trace; deltris, 24, Parasites: Dis- 

 tomes, 23; nematfides, 2.5. The del)ri3 consisted of anncUd and crustacean fragments, 

 and diat<^)m.s; the latter were interpreted as having been introduced with the 

 amphipods. 



ST.VTION IS. N/U.gnON, BUZZARDS BAY .miOUE, JULY 26, 1916. 

 [Bottom, sand and eelgrass.] 



Length, 26 to 50. — Maximum length, 40; minimum, 37. Number examined, 2. 

 Food: Amphipods, 35: annelids, 20; copepods, trace; d6bris, 45. Parasites: Dis- 

 tomes, 6.5. 



Length, 51 to 75. — Maximum length, 65; minimum, 52; average, 55.6. Number 

 examined, 6. Food: Amj^hipods, 77.1; annelids, 15; copepods, trace; insect larvae, 

 0.1; ostracodes, trace; d6l)ris, 7.6. Para.sites: Distomes, 10,8; nematodes, 0.5; Spo- 

 rozoa, 1 cyst on serous membrane, between stomach and liver of one fish, 



ST.\TION 19. KATAMA HAY, MARTHAS VINKYARD, JULY 27, 1915. 



[Bottom, sand, with much algiP. The bay had been closed on the ocean .side for the preceding six years. 

 There is, therefore, but little current produced by the tides. Flounders, few.] 



Length, 26 to .56'.— Maximum length, 49; minimum, 28; average, 38.5. Numl)er 

 examined, 12. Food: Amphii)ods, 32.7; annelids, 11.8; Cumacea, 1.8; copepods, 

 26.3; cdelenterates (Sagartia), 0.5; univalve moUusk (Crepidula), 1.3; larval Crus- 

 tacea, 1.8; nemerteans, 0.5; ostracodes, 4; del)ris, 19.1. Parasites: Distomes, maxi- 

 mum, 317; minimum, 3; average, 99.7; SiK)rozoa, 1 cyst on intestine of smallest fish. 

 In (me fish (32 mm. in length), the alimentary canal was empty except for the presence 

 of dist<jmes, of which there were 317 in the stomach. 



