L.M.B.C. TURBETLARIA. LE 
97. Stylostomum variabile, Lang (Pl. XTV, figs. 43, 46.) 
Length 5—8 mm. Body oval, rounded posteriorly, nar- 
rowed anteriorly. The angles of the truncated front- 
margin are slightly produced into rudimentary tentacles. 
The body is usually colourless, and is more or less trans- 
parent according as the genital organs are less or more 
developed. Immature examples display the branches of 
the brightly-coloured intestine very clearly.. The mouth 
combined with the male genital pore, is just behind the 
brain. The muscular pharynx gives rise to the white 
anterior area seen upon the dorsal surface. Small groups 
of eyes are present over the brain, and at the base of the 
tentacles. In front of the sucker lies the female pore, sur- 
rounded by the massive “shell-gland.” The uterus is 
placed at the sides of the main-gut. 
This species was dredged on shelly ground, outside 
Port Erin Harbour. It also is found at Plymouth, and 
has been recorded by Dalyell from the Firth of Forth. 
In concluding this Report I wish to express my 
hearty thanks to Prof. Herdman for the use of the 
L.M.B.C. Station, at Port Erin, and to my friend Mr. W. 
J. Beaumont, for his ever ready assistance in the capture 
of these Turbellaria. 
HIXPLANATION OF PLATES, XII—XIYV. 
List of Abbreviations :— 
AU eyes, BR brain, CH copulatory organ, D intestine, 
DP dorsal papille, HJ ejaculatory duct G and PH 
penis, GA genital atrium, GD poison glands, GER 
germaria, GO genital aperture, KC chitinous granule-duct, 
