150 Transactions of the Society. 



Geania Southern. 



Set* present, straight and thick, but absent from anterior 

 region; habitat marine. 1913, Southern, in Proc. Roy. Ir. Acad., 

 xxxi. No. 48, pp. 8-12. 



55. G. maricola Southern. 1913, Southern, as above. Clew 

 Bay, Blacksod Bay, and Dingle Bay, Ireland. Regarded by the 

 author as related to Enchj/tiwus monochwtus Mich. 



Henlea Michaelsen, em. Friend. 



Setae straight or sigmoid. No dorsal pores. (Esophagus fre- 

 quently enters the intestine by a bulbous enlargement in segments 

 7, 8, or 9. Spermathecpe simple, devoid of diverticula. 



N.B. — The discovery of many new species which do not agree 

 with the old generic definition makes revision necessary. As a 

 first step towards this the genus is divided for the present into two 

 sections. §1. Henlea, possessing oesophageal glands. §2. Henlea- 

 nella, destitute of such glands. It would be advisable to make a 

 third group for those species which show a gradual emergence of 

 the oesophagus into the bulbous enlargement. These will in due 

 course probably constitute a new genus. Many details will be 

 found in my previous contributions to this Journal, as well as to 

 the pages of the Zoologist and other scientific magazines or the 

 records of various Natural History Societies. 



§ 1. Henlea Mich. (Esophageal glands present. 



56. H. attenuata Friend. 1912, Friend, in J.E.M.S., p. 592; 

 Southwell, Notts, March 26; Overseal, Derbyshire, April 12, 

 1913. Friend, in Trans. Notts Nat. Soc, 1910-11, p. 39. 



57. H. fragilis Friend. 1912, Friend, in J.R.M.S., pp. 588-9. 

 Hastings, Sussex, December 21, 1911. 



58. H. fridericioides Friend. 1912, Friend, in J.R.M.S.,p. 587. 

 Hastings with the foregoing, December 21, 1911. 



59. H. heterotropa Friend. 1912, Friend, in J.R.M.S., p. 589. 

 Hastings, as before. 



60. H. hibernica Southern. 1907, Southern, in Irish Nat., 

 xvi. p. 70. 1909, Proc. Roy. Ir. Acad., xxvii. p. 146. Lambay, 

 Ireland. Also counties Kerry and Meath. 1913, Notts (first 

 English record, April 25, received from Mr. H. Hillman, who also 

 collected it for me in Jersey) ; Sedlescombe, Sussex, August 16, 

 1913. 



