PARASITES OF FISHES OF THE WOODS HOLE REGION. 465 



Cliilomycterus schoepfi {('. ijeomflriniK, Diodoii iiiriculii-xtrinln.i), Puffer, Pi)rriipi)u--Jisli. 



XKMATODES. 



1. Ancarh nerjliTln Leidy. [PI. v, figs. 33-3(1.] 



Two fipeoimons from intestine of this fisli July 21, 1887, are referred to this species; one male 

 and one female, the latter with the anterior end missing. Leidy's description of this species is: 

 "Body cylindro-fusiform, most narrowed anteriorly; head naked; lips large and obtuse; tail short, 

 conical, acute. Length of female 2 inches, breadth three-fifths of a line; male about half the size." In 

 these specimens the body is transversely wrinkled, producing a beautifully crenulated margin, the 

 crenulations themselves being made finely dentate by transverse lines. Tail mucrouate, the tip slightly 

 roughened. No postanal papillse were made out. There are twenty preanal papillic, more or less, on 

 each side arranged in a single row; those immediately preceding the anal aperture are the smaller. 

 The papill;e suggest ,1. habemi. The length of the fragment of a female was 15 mm., and its diameter 

 1.3 mm. It exhibited the same crenulate margin with <lentate detail of outline as the male. 



Dimensions of male in millimeters: Length, 2(); diameter of head 0.17, 1 mm. from anterior end 

 0.21; maximum diameter, near po.sterior end 0.8, 1 mm. from posterior end O.fH, at anal ajierture 

 0.15; length of head 0.15; distance of anal aperture from posterior end 0.13; length of fesophagus 6.3; 

 length of copulatory spines 4.25, brea<lth 0.02. 



IKSTODES. 



2. [Ji/iilii i-hiki)iiiicieri. 1, pp. 78.S-7SII, pi. i.xi, fig. 1. 



Mela mola (Muln riiliniiln), Suh-JUIi. 



I add the following to the meager food notes made in my report for 1898 [7, p. 281]: July 19, 

 1899; 1. Stomach and intestine filled with chyle resembling thick soup or gravy, with remains of 

 salp:e and possilily ctenophores. July 30; 1. The alimentary canal, which in this singular fish is little 

 differentiated into stomach and intestine, and in this individual me<a.sured 3.7 meters (12J feet), 

 contained a thickish soup or gravy-like chyle, which in places was held together l)y a viscid mucus. 

 A large numljer of salpre and numerous small, pinkish amphipods were found, the latter more abundant 

 toward the lower part of the intestine. July 10, 1900; 1 (weight, 286 pounds). The alimentary canal 

 contained a yellowish-gray soui>like chyle. Food material not distinguishable. July 29; 1. Taken 

 by the schooner Grampus .south of Gay Head. A large jelly-fish is reported by Mr. C. W. Stone from 

 the stomach. 



ACANTHOCKPri.VL.\. 



1. EchinvrliiiiirjiKx ncux liudolphi. 



A fragment fouiid w ith a lot of trematodes from the gills, collected by Vinal X. Edwards, July 13, 

 18S1, apjiears to belong to this species. 



NE.MATODES. 



2. Iinmiiliire iii'iaaioilt:. [PI. vi, figs. 51,52.] 



A small specimen was found encapsuled on the intestine, July 10, 11)00. 



CESTODES. 



3. Dihullirhttii. microrejihiiliiiii Rudolphi. Intestine. 2, pp. 736-745, pi. ii, figs. 5-18. 7, p. 282. 



Thirty -three specimens were obtained July 30, 1899. Twenty of these were normal. In the 

 others the first, ami sometimes the second joint also, was elongated and slender. [PI. xxv, figs. 270, 

 271.] A similar coiKlition was noted in 2, pp. 736-737. Thirty-three, also obtained on July 10, 1900, 

 longest 150 em.; total length of worms aljout 30 meters (100 feet). July 29, 1900; numerous. Mr. 

 C. W. Stone reports that the harpoon jjassed through the intestine, and that the tapeworms were 

 in consequence much liroken. Only a few were preserved. The largest fragment, which consists 

 of mature proglottides throughout, measures 86 cm. in length and 10 mm. in breadth at widest 

 part. It is 7 mm. wide at anterior end and of nearly uniform breadth, narrowing, however, at 

 posterior end. Another fragment, with scolex attached, which may be a part of the same worm, is 

 17 cm. in length. 



F. c. B. lsa9— 30 



