596 E. J. ALLEN. 



Bles (Jour. M.B.A., voL 2, 1S92, p. 343) who reared it from townettings 

 taken in September. He considers the species to be P, Leuckartii 



Hatschek (Arbeit. ZooL Inst. Wien., vol. 3, 1880, p. 79). 



Adults have since been found on the shore in numbers by Orton 

 (Nature, voL 91, 1918, pp. 85 and 348) at eleven different points between 

 Salcombe and Looe, under stones and gravel near high-water mark, 

 where small fresh- water streams join the sea. Orton records this 

 species as P. flavocapitatus Uljanin. 



Ctenodrilus paedalis Claparede : Beobactungen fiber Anat. u. Entw. 

 wirbellos. Thiere a. d. K. von Normandie, 1863, p. 25. 



Plymouth. Found in the Laboratory tanks and also in pools at 

 high-tide level below the Laboratory by Dr. C. Shearer. Some- 

 years it is very abundant in the tanks, in other years it is absent 



(C.S.). 



Nerilla antennata Schmidt : Goodrich, Quart. Journ. Micr. Sci. 

 vol. 57, 1912, p. 397. 



Plymouth. First recorded by Miss F. Buchanan (Rep. Brit. Assoc. 

 1892, p. 358). It has since been found to occur frequently in the 

 Laboratory tanks, and also in scrapings from piles in the Catte- 

 water. 



Breeds from February to June in the Laboratory Tanks (c.s.). 



Saccocirrus sp. : Goodrich, Quart. Journ. Micr. Sci. vol. 44, 1901, 

 p. 413 ; and Pierantoni, Ann. Mus. Zool. Napoli, vol. 2, no. 18, 1907. 

 Plymouth. Found by Orton in Cav/sand Bay together with 

 Protodrilus, amongst stones and gravel just below high-water mark 

 where a small fresh- water stream joins the sea. He thinks the 

 species different from S. papillocercus Bobretzky (Nature, vol. 91, 1913, 

 p. 348). 



Polygordius lacteus Schneider : Herrfpelman, Zeitsch. wiss. Zool. 

 vol. 84, 1906, p. 527. 



Plymouth. Dredged in clean shell gravel off the Mewstone and 

 near the west end of the Breakwater. In clean shell gravel near the 

 Eddystone and off Bolt Head. 



HiSTRiOBDELLA HOMARi Van Bcnedcn : Foettmger, Archiv. Biologic, V. 



1884, p. 435. Shearer, Quart. Journ. Micr. Sci. vol. 55, 1910, p. 287. 



Plymouth. Usually found on the eggs of lobsters taken by 



fishermen, but normally an inhabitant of the branchial chamber (c.s.). 



Breeding during the summer months. 



Breeding in September (c.s.). 



