NEW BRITISH HENLEAS. 465 



Meanwhile Bretscher and others had been at work on the 

 subject abroad, while I was engaged upon the species to be 

 found in England, In 1898 I found a new species of Henlea 

 at St. Anne's-on-Sea, Lancashire. It corresponds almost 

 exactly with H. lampas, Eisen, and as it has never yet been 

 described in English, I transcribe my original memoranda. A 

 small worm, about one-sixth of an inch (= 3-4 mm.) in length, 

 thirty segments, with yellowish blood. Setae very large, strong, 

 and equal in length ; straight, with inner edge slightly bent, 

 extending over half diameter of the body. In one specimen the 

 setae were chiefly three ventral and two lateral ; but in a larger 

 specimen of forty segments, fully developed, the setae were 

 chiefly four in ventral and three in lateral bundles in anterior 

 part of body, with two posteriorly. Head-pore present between 

 prostomium and first segment. Ventral vessel bifurcating in 

 segment three, and dorsal vessel shading off here, reappearing 

 in about four to seven as a kind of pulsating heart. Brain 

 notched before and behind, rather longer than broad. Found 

 among seaweed, zoophytes, and debris on the shore. My own 

 notes, like those of Eisen, are wanting in important details, for 

 it is only within the last ten years 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 matter I 

 provisionally enter H. lampas, Eisen, as British. 



The next species to place on our lists {H.puteana, Vejd.) is one 

 of the four mentioned by Beddard. It cannot be confused with 

 any other, for it is the only species in the genus with two pairs 

 of spermathecaB, and it is in this respect unique in the whole 

 family. I found it in Ledbury churchyard on Easter Monday of 

 this year. It occurred with other Enchytrseids among moss and 

 algse where water trickles over stones into a well. Unfortunately, 

 during my absence from hotne the material suffered, and I was 

 unable to study the living worms in detail as I purposed doing. 

 For the present this remains the only known habitat within the 

 British Isles. 



Our next record is of special interest. On May 27th I went 

 to Buxton and collected Annelids, giving particular attention 

 to the microscopic forms. Along with Enchytrceus minimus, 

 Bretscher, I found Henlea rosai, Bret., which is slightly larger 



