PARASITES OF FISHES OF BEAUFORT, NORTH CAROLINA. 427 



PLATE XXIX. 

 Distomum pectinatum. From silver perch ( Bairdiella chrysura). 



Fig. 202.— Dorsal view of head. Life; X 315. 



Fig. 203. — Ventral view of head and part of neck. Life; X 315. 



Distomum sp., from the pompano {Trackinotus carolinus). 

 Fig. 204.— Longitudinal section. Actual length 5.5 mm. 



Distomum sp. 



Fig. 205. — From the toad-fish {Opsanustau), same lot as 167 Ventral view. Ova peculiar in being 



distinctly fusiform. 

 Fig. 206. — Imperfect specimen from amber jack (S t -ri<,l<i lalandi). The specimen simulates a segmented 



worm. Actual length 5 mm. 

 Fig. 207. — Longitudinal and nearly horizontal section of same. 



Fig. 20S. — Immature specimen from rabbit-fish ( Chilomycterus schoepfi). Actual length 1.06 mm. 

 Fig. 209. — Immature specimen from sea cat-fish (Oaleichthys milberti). Actual length l.s mm. 



PLATE XXX. 

 Distomum sp. 



Fig. 210. — From butter-fly ray [Pteroplatea maclura). Specimen removed from capsule. Actual 



length 1.35 mm. 

 Fig. 211. — Immature specimen from barracuda (Sphyrsena borealw). Actual length 0.24 mm. 

 Fig. 212. — Immature specimen from sole (Symphurus plagiusa). Actual length 0.62 mm. 

 Fig. 213. — Immature specimen from intestine of common dolphin (Coryphiena hippurus). Ventral 



view. Actual length 2.5 mm. 

 Fig. 214. — Immature specimen, apparently same species as shown in figure 213. Actual length 2.4 mm. 

 Fig. 215. — Distomum (?) sp., from toad-fish [Opsanus tau). Lateral view. Actual length 2.8 mm. 



ex c, Material extruded from excretory vessel. 



Monostomum sp., from hog-fish {Orthoprislis chrysopterus). 



Fig. 216. — Sketch of specimen not in good condition; peculiar in that the species bears a superficial 

 resemblance to Oaslerostomum arcuatum. Actual length 2.25 mm. 



PLATE XXXI. 

 Monostomum sp. 



Fig. 217. — From rock-fish ( Fundulus majalis). Actual length 1.12 mm., life. 



Fig. 218. — From hog-fish ( Orthopristis chrysopterus). Actual length 1.4 mm. (See Fig. 216.) 



Fig. 219. — Ova and yellow bodies from uterus of same. Actual length of ovum 0.025 mm. 



Fig. 220. — Monostomum vinal-edwardsii Linton, immature, from toad-fish (Opsanus tau). Life; actual 



length 1 mm. ex p, Excretory pore. 

 Fig. 221. — Excretory pore of same. Life; X 525. 



Fig. 222. — Monostomum sp., from hog-fish ( Orthopristis chrysopterus). Life; actual length 0.S6 mm. 

 Fig. 223. — From same host. Ventral view, life. Actual length 0.9 mm. 

 Fig. 224. — Cirrus, genital acetabulum, etc., dorsal view. Life; X 315. 

 Fig. 225.— Ova. X 540. 

 Fig. 226. — From pompano {Trachinotm carolinus). Actual length 0.87 mm. 



PLATE XXXII. 

 Monostomum., from pompano ( Trachinotus carolinus). 



Figs. 227 and 228. — Two specimens from same lot as 226. Life; actual length of larger 1.5 mm. 

 Fig. 229.— Ova. Actual breadth 0.017 mm. 



