PARASITES OF FISHES OF THE WOODS HOLE REGION. 463 



Tautoga onitis, Taulay, Dlack-Jhh. 



In specimens exainiiu'd jnevious to 1899 the stomachs were empty. In the suniiners oi 1899 and 

 1900, 24 tautog were exaniineil. In the ahmentary eanals of the large specimens a fjreat variety of 

 crahs and molhisks were found. A specimen taken at Menemsha Bight, August 1, 1899, had its 

 ahmentary canal filled with fragments of crabs and mollusk shells. Among them were recognized 

 TrlHia tritilata (many). Purpura lajrUliiK, Lunalia hcros, Acm.ra IcxIiidinaHs, Mi/lihtu edulia'' {many 

 fragments), Cancer irroratus, Eupagurus jmllirarix (many), Lif/inia raunliculata. The shells and tests had 

 all lieen more or less crushed and broken. No entozoa were found in the alimentary tract of tiiis fisli. 

 Indeed, it is difficult to see how any could stay in a fish wdiich lives on such a mechanically anti- 

 helminthic iliet. In small specimens were found seaweeds, a variety of small crustacea (am[ihipods, 

 copepods, shrimiis, small crabs, etc. ), molhisks, both univalve and bivalve, and annelids. 



TI!E>I.\TOJIES. 



I . ImmalW'c dixlDiiii'x eiwiixtnl in lite akin. 



The entire surface of specimen from Menemsha, mentioned in tlie fiH>d uotes given above, was 

 thickly peppered with small black i)igment patclies, in which small cysts could be seen. These piguient 

 patches and cysts liavea general rescnd)lance to those descrilied from the cunner. [7, pp. 281, 29(i, pi. 

 XL, figs. 7t)-81.] These cysts were so abundant in this specimen that it was a difficult matter to find a 

 scale which was free from them. Usually there was a cluster, often containing as many as 6 or 8 cyst.«, 

 on each scale. The fins were also thickly beset with them. Even the corneas of the eyes were infested 

 witli them; 74 were counted on one eye and 81 on the other; 14 anil 17, resiiectively, were over the 

 jiupils. [PI. xwiii, fig. :U8.] The walls of the cysts were transparent, so that the suckers of the 

 contained distome could lie distinguisluMl through them. 



Chastodipterus faber, Mniin-jisli. 



This fish is rarely taken in the vicinity of Woods Hole. In October, 18.S(i, I received from ]\Ir. 

 S. E. Week, Fulton ^larket. New York, a few cysts from the abdominal cavity nf a moon-fish froui the 

 North Carolina coast, from which the following were oljtained. 



N'EM.VTODES. 



1. Ii-lillijiiiiii'ina sp. From abdominal c-avily. [I'l. xvin, ligs. 218, 219.] 



Tlu- longest entire specimen measured 217 mm. in li'Ugtli; of nearly unil'niui ■lia meter throughout, 

 iiiaxiiiiiiiii ilianu'ter I.timm.. diameter near anterior enil 0.4 mi u., increasing soon to ] mm. In another, 

 a Iraguient, whose maxinnmi diameter was 1. 12 mm., the diameter of the head was 0.2.'! iniii. It was 

 surmounted by four distinct papilhe. The uterus contained ova in various stages of segmciilaticm along 

 with embryos wliich agree with those descrilied under Irlillii/oniinu (//.oliiccjitt. l^ength, C'i mm. ; greatest 

 diameter, 0.013 mm. Exceedingly fine-pointed at smaller eml. In the larger specimen the principal 

 part of the IiikIv, more particularly the anterior hall', was literally paekeil with young. 



CESTODES. 



2. lUiiiiti-iitiliiitliiiiini Kpiriiisttiii Linton. Cysts on viscera. -I, pp. SOl-.sO."), pi. i,.\iv, tigs. V.',. 14, anil pi. 



i,x\, figs. 1-7. 

 ?>. Telrarliijnclius. Cysts on viscera. 4, p. 808. 



Balistes vetula, Trii/ijir-jiali. 



Eoon. 



Twelve small specimens from Kalama Bay were examined September 1, 1899. Amphipods, 

 cojieiiods, and seaweed were fnuiid in tbi' alimentary canal, but no entozoa. 



Alutera schoepfii, Fik-Jixli . 



EOOll. 



The stomachs have usually been emjity. Two were seen, however, one on July 24, 1887, the 

 other August 5, 1889, in which tfiere were stems of hydroids. In one of these the intestine was filled 

 throughout its length witli masses of hydroid stems. 



