584 Transactions of the Society. 



Eather larger than Enchytrfeus miniinus Bret., with which it 

 was associated. Segments 35. Setse varying in number, more in 

 ventral than in dorsal bundles. Usually 4^5 dorsally and 6-8 

 ventrally, either equal in length or Pachydrilus-like. Nephridia 

 easily seen ; duct, unlike most species of Henlea, a continuation 

 of the postseptal. Two kinds of coelomic corpuscles, the small 

 ones pointed, the large discoid, many. Spermatheca with Imlbous 

 ampulla midway in the duct. Sperm-funnel about twice as long 

 as broad. Brain as broad as long, concave in front, slightly convex 

 behind. Intestine sharply marked off from oesophagus in the 7th 

 segment, where the chloragogen cells begin. Pulsating vessel in 

 7th and neighbouring segments. N"o cesophageal glands. 



This agrees very nearly with Bretscher's later account published 

 in Eevue Suisse de Zoologie, 19U1, ix., p. 207. 



British Record. — Buxton, May 27, 1911. Friend in the Natura- 

 list, Sept. 1911, p. 320. The Zoologist, December 1911, p. 465. 



7. Henlea lampccs Eisen. 



Originally described Ijy Eisen in 1878 as Archienchy trains 

 lampas from Siberia, this species was placed by Prof. Michaelsen 

 among the uncertain members of the genus Henlea when he pub- 

 lished Das Tierreich in 1900. His description is as follows: — 

 Length 8 mm., segments about 46. Setfe 2 or 3 in lateral and 4 

 in ventral bundles, the outer pair being somewhat largest. Brain 

 rather longer than broad, slightly concave before and behind, slightly 

 diverging towards the posterior. Duct of nephridium about as long 

 as postseptal, from the front part of which it arises. Anteseptal 

 broad. Sperm-funnel hardly twice as long as broad, penis (?) 

 almost as large as the funnel. The spermatheca has a sac-like 

 ampulla. 



The details, as will be seen, are scanty ; but so long ago as 

 1898 I found specimens of an Annelid which more closely resembles 

 this than any other which had been previously described. It may 

 be well to give my original memoranda. "A small worm, about 

 ^th of an inch (= 3-4 mm.) in length, 30 segments, yellowish 

 blood, setse strong, large, equal in length ; straight, with inner end 

 slightly bent, extending over half diameter of body. In one speci- 

 men the setse were cliiefly three ventral and two lateral ; but in a 

 larger specimen of 40 segments, fully developed, they were mostly 

 4 in the ventral and 3 in the lateral anterior bundles, with 2 pos- 

 teriorly. Brain notched before and behind, rather longer than 

 broad." My own notes, like Eisen's, are lacking in some important 

 details, for it is only during the past decade that we have learned 

 exactly how to describe these puzzling species. But as no other 

 worm with which I am familiar can be produced to settle the 



