378 IULLETIN OF THE BUBEAU OF FISHERIES. 



1 1. Cestode larva. 



Same as No. 8, under Micropogon undulatus. 



1902. — Aug. 16, 2, with crumpled bothria and striated neck — probably Anthohulliriiuii /mlriuatum. 



12. Cysts. 



HH)2. — July S, cysts on viscera, probably cestode, but do larvae found. 



TREMATODES. 



13. Distomum appendiculatum Rudolphi. [Fig. 152.] 



1902. — July 14, a single specimen found in a small piece of the intestine, which was under exami- 

 nation for f 1 under the compound microscope. The specimen was small, yellowish by transmitted 



and whitish by reflected light; excretory vessel white by reflected, dark by transmitted light; body 

 crossed by fine transverse lines, active, contracting to 0.6 mm. in length and 0.45 mm. in breadth and 

 extending to twice that length, at the same time narrowing proportionally. 



Dimensions, life, in millimeters: Length 1.26; maximum breadth, just behind ventral sucker, 

 0.41; oral sinker, length 0.060, breadth 0.075; pharynx, length 0.054, breadth 0.036; ventral sucker, 

 length 0.10, breadth 0.17, becoming nearly circular at times; ova, 0.025 by 0.011. 



14. Distomum vitellosum Linton. 



1901. — Aug. 31, 1. A fragment of a distome which resembles this species was found on this date. 



15. Distomum globiporum Rudolphi. 



1901. — July 11, 1. White, long, oval specimen belongs to this species or is near it. Dimensions in 

 millimeters: Length 5.5, breadth 2.5; diameter of oral sucker 0.56, of pharynx 0.4, of ventral 

 sucker 0.S4; ova, 0.08 ami 0.05 in the two principal diameters. 



The following notes were made at the time of collecting: Pharynx globular, close to oral sucker, 

 esophagus short, genital aperture immediately behind pharynx; intestinal rami simple, probably 

 extending to posterior end; cirrus lying along median line, pouch dorsal to ventral sucker; ovary 

 globular, 0.3 mm. in diameter, close behind ventral sucker ami a little to the left; testes two, close 

 together, about on median line, the anterior one near the posterior edge of the ventral sucker; 

 vitellaria voluminous, tilling posterior half of body and extending laterally to about middle of neck; 

 ova only moderately abundant. 



10. Distomum corpulentum sp. nov. 



lool. — Aug. 28, a small, nearly spherical distome which agrees with No. 14 under Zagodon 

 rhomboides. The surface of this specimen was roughened by exceedingly minute toothed or crenulate 

 transverse lines. These appear in some places to he low blunt teeth. Dimensions in millimeters: 

 Length 2.8; diameter of oral sucker 0.15, of ventral sucker 0.57; ova, 0.037 and 0.02 in the two 

 principal diameters. 



17. Distomum bothryophoron Olsson. [See tigs. 174, 175.] 



1901. — July 10, 1. When lying free in. sea water this distome was rather plump, smooth, but with 

 fine transverse wrinkles. Pharynx nearly globular and contiguous with oral sucker; oesophagus none' 

 or very short; ova very numerous, obscuring other organs; apertures of both oral and ventral suckers 

 transverse: genital aperture on median line just behind pharynx. Dimensions in millimeters: Length 

 3.24, breadth, median and maximum 1.19; oral sucker, length 0.18, breadth 0.21; ventral sucker, 

 length 0.64, breadth 0.78; pharynx, diameter 0.1; ova, 0.051 and 0.024 in the two principal diameters. 

 July 11, Figs. 174, 175 made from this specimen. July 30, 1, small. Dimensions in millimeters: 

 Length 1; oral sinker, length 0.0S, breadth 0.11; ventral sucker, diameter 0.31; pharynx, diameter 

 0.05; breadth of body, anterior 0.11, middle 0.43, posterior 0.11; ova, 0.044 and 0.017 in the two 

 principal diameters. 



1902.— July S, 1. July 19, 2. July 25, 1. July 31, 5. Aug. 19, 1. 



Rather plump, fusiform, often pale red. The flattened and stained specimens show the presence 

 of a lobed vitelline gland like that of D. bothryophoron. The specimens found on July 8 and 25 were 

 about as broad as long, and at first were taken to be representatives of a different species, but upon 

 being cleared up show the characteristic vitellaria of this species and also agree in other particulars. 

 Length 1.35 mm., breadth 1.35 mm.; another length l.S mm., breadth 0.9 mm. 



