British Encliijtrmds. By Ptev. H. Friend. 595 



(Fig. 116). Brain somewhat oviform, i.e. with the posterior rounded 

 and larger than the anterior. Attachments from the posterior 

 somewhat unusual. Three pairs of septals, no oesophageals, no 

 salivaries. Girdle rather opaque, includes a small part of the 11th, 

 all the 12th, and half the 13th segments. First nephridia between 

 2nd and 3rd septals, i.e. in segments 6/7 with large pore in front of 

 6th set of setffi on segment 7. One specimen examined had the 

 first nephridia in segment 5/6. Small anteseptal, large postseptal, 

 and duct (Fig. 117) from anterior portion near the septum. The 

 8th segment with bulbous enlargement, behind which the dorsal 

 vessel arises in the front part of segment 9. Chloragogen cells 

 begin with the neck of the Ijulb or bottle in 8. Differs from 

 H. dicJcsoni in having no salivaries, no glands to the spermathecae, 

 and point of origin of dorsal vessel. 



2. Length 12 mm. Segments 50. Yellowish white, clear and 

 transparent. Brain about as long as broad, notched behind and 



Int. 



Pore y3 



Glands 



Fig. 118. — Spermatheca of Henlea rhmtica Bretscher, 

 with glands. 



straight in front. Setse Fridericia-Y[kQ, i.e. getting smaller towards 

 the middle of the bundle, as many as 8 in front, 7-6 in the middle 

 and 5-4 in hindmost segments. Bulbous swelling in 8, but dorsal 

 vessel arising at the posterior end of segment 9 ; large, clear, white, 

 and pulsing, but with a few chloragogen cells on the vessel. Three 

 pairs of septals. Spermathecie with glands at 4/5 opening, a fairly 

 long duct, and an ampulla of about the same length (Fig. 118). Xo 

 oesophageal glands. Vermicelli -like duct in girdle (see H. marina) 

 with small ampulla. About 3 rows of clear epidermal glands in 

 anterior of body, usually near the middle of each segment. Chlora- 

 gogen cells very small, inconspicuous, yellovtdsh brown. Girdle 

 1/2 xi— 1/2 xiii, cells in rows not very distinct. 



British Records. — (1) Canal Banks, Xottingham, April 15, 1912 ; 

 .(2) Hastings, December 21, 1911. 



2 s 2 



