528 Prof. Mcintosh's Notes from the 



respiration was so active that before capture it spouted water 

 from each gill-slit. The circumference was 8 ft. 6 in. In 

 the stomach was a large quantity of greyish mucus with 

 fragments of cestodes. The parasites mentioned subse- 

 quently were found not only amongst the muscles, but in the 

 liver, and many pyriform scolex-like forms occurred in the 

 same tissues. 



Dr. Wm. Nicoll reports that in the small example he 

 found, in the lower part of the intestine and the rectum, 

 about fifty specimens of Dihemintephanus lydiie, Stossich^ one 

 of the spinous trematodes with a peculiar configuration of the 

 cephalic spines. He also found about a dozen examples of 

 the cestode Anchistrocephalus microcephalus, Rud., in the 

 intestine. Moreover^ besides Acanthocepkalus reptans {Gym- 

 norhynchus horridus, G^odsir) in the muscles^ Acantho- 

 cephalus elongatus burrowed in all directions in the liver. 

 L>r. Caiman kindly identified Cecrops latreillii, Laach, which 

 was found, as in 1862, infesting the gills, and Lepeophtheirus 

 nordmanni^ M.-Edw., which occurred in considerable immbers 

 on the skin, the latter not having been present in the larger 

 example in 1862, which, however, had numerous specimens 

 of Tristoma coccineuin on the surface. 



4. On the British SphjErodorida3, Chloraeraidte, and 

 Chsetopteridoe. 



The first family is extremely limited both in respect to 

 genus and species, the common form, Ephesi'a gracilis, 

 H. Rathke, being that formerly entered by Dr. Johnston in 

 the Catalogue of the British Museum and by Dr. Allen in 

 the ' Fauna of Plymouth ' (1904). The species seems to be 

 everywhere distributed in British waters, from the tidal 

 region to 6 or 15 fathoms or more, the finest examples coming 

 from the deeper water off St. Andrews Bay. It is a form 

 which exhibits only moderate activity, crawling slowly about 

 or throwing itself into coils. It extends to Norway, Spitz- 

 bergen, and Greenland. 



The foot has dorsal ly the opaque white globular process 

 which appears to be a modification of a cirrus. It is smooth 

 throughout and has at its outer and upper surface a clavate 

 papilla similar to those on the surface of the body. The 

 conical setigcrous lobe occurs beneath, and its surface and 

 tip are hispid with large papillye of the kind already men- 

 tioned. It is supported by a single, strong, translucent, 

 tapering spine, which has a tip simply pointed. The number 

 of the bristles is usually four, and they have a characteristic 



