PARASITES OF FISHES <>F BEAUFORT, NORTH CAROLINA. 



391 



it becomes a very conspicuous object. In some positions these lobes suggest by their outline the fore 

 toot of a mole. 



I '.mil'.— .July is, 4. July 30, few. 



5. Distomum areolatum Rudolphi. 



1902. — July 18, 6. These agree closely with the species which I have been recording under this 

 name. The outline, however, is oval-elliptical, with the greatest diameter at the middle of the length, 

 or a little in front of the middle. July 30; 6, small, oval, yellowish; posterior end, when first seen, 

 emarginate; body with a dense covering of minute spines. 



6. Distomum tenue Linton. 



1901. — Aug. '.'. '.'•, resembling tins speeies, although there were- no oral spines. Dimensions in 

 millimeters: Length 3.6; diameter 0.65, about uniform for the posterior two-thirds, i. e., from the 

 ventral sucker to the posterior end; transverse diameter of oral sucker 0.19, of the circular ventral 

 sucker 0.26; pharynx, length 0.28, breadth 0.26; ova, average of four, 0.09 and 0.06 in the two prin- 

 cipal diameters. Aug. 15, 3, long and slender, same as foregoing. Aug. 30, 4. The cuticle on the neck 

 of these was thrown into rather coarse folds, at least on the margins, probably an evanescent and 

 possibly an accidental character. It gave to these specimens a very characteristic appearance. 

 Dimensions in millimeters: Lengths of two measured 2.6 and 4.5. Further dimensions of the latter: 

 Diameter, maximum, 0.6, of oral sucker 0.2, of ventral sucker 0.3; pharynx, length 0.3; breadth 0.18; 

 distance of pharynx from anterior end 0.8. 



1902. — July IS, 4, and several others which appear to be the young of this species. 



Leiostomus xanthurus, Spot. 



Date. 



Number of tish 

 examined. 



Food notes. 



1901. 

 July 11.... 

 July 12.... 



July 17. 

 July 19. 

 July 30. 



Do. 



July 31. 



2 specimens small, 60 

 mm. in length.) 



August 10 4 (small) 



August 17 1 (small) 



August 24 

 August 30. 



1902. 



Julys 14 (small) 



July 16 6 (small) 



Julj 17 do . 



July 19 do. 



July 21 5 (small 



July 22 do ... 



July 23 6 (small ) 



July25 1 (small) 



July 28 7 (small i 



July29 4 (small i 



July31 6 



August 1 5 



August 4 4 1 small) 



August 7 1 



August 8 5 (small) 



August 11 5 



August 13 4 



August lii 1 



August 18 2 



August 21 5 (small i 



Crustacea, mainly shrimp. 



Broken shells of small bivalve mollusks, amphipods, os- 

 tracodes, and green seaweed, 



Ostracodes. sand with a few small bivalve mollusks with 

 much vegetable d'bris. 



Large quantities of broken shells of bivalve mollusks. 

 amphipods. 



Large quantities of broken shells, with small spines of sea- 

 urchin and sand. 



Broken shells, many; a few annelids, shrimp, and am- 

 phipods; much sand. 



Fragments of shells and sand. 



Bivalve mollusks and shrimp. 



Small gasteropod and lamcllibranch shells; copepods; 

 spines of sea-urchin and sand. 



Bivalve mollusks. shrimp, annelids. 



Fish, shrimp, lamellibranchs and small univalves, sea- 

 urchins. 



Shrimp, small lamellibranchs. sea-urchins, sand. 



Small spines of sea-urchins, ostracode shells, very small 

 isopods, sand. 



Shrimp, small gastropod shell- . Olivia), sand. 



Mainly small Crustacea; no entozoa. 



Shrimp, green vegetable debris. 



Amphipods, smalt gastropods, annelids. 



Spines of sea-urchin and broken lamcllibranch shells. 



Mainly amphipods. 



Ostracodes. copepods, annelids, spines of sea-urchin, sand, 



Spines of annelids, diatoms. 



Broken shells, small gastropods, two small sea-urchins. 



Broken shells, sea-urchin spines. 



Lamellibranchs, ostracodes. spinesof sea-urchin, annelids. 



Lamellibranchs, gastropods, small Crustacea, bryozoa, 

 spines of sea-urchin. 



Lamellibranchs, entomostraca, annelids, spine- of sea- 

 urchin. 



Shrimps, sea-urchin, sand. 



shrimps, sea-urchin, sand; no entozoa. 



Lamellibranchs, sea-urchin spines, sand. 

 Do. 



Small lamellibranchs, copepods, annelids, spines of sea- 

 urchins, sand. 



The. sea-urchin spines were those of the common spatangoid Moira atropos. The sand so commonly 

 found in the alimentary canal of the spot doubtless comes from the intestines of this sea-urchin. 



