including species new to that of Britain. 391 



gestive system, which were of a fine dark red 

 colour, very conspicuous ; and, owing to the 

 jagged outline of the series of lateral lobes, &c. 

 the creature was so extremely beautiful, that 

 it might be compared to an arborescent agate. 

 It is well-entitled to the epithet vermiculus 

 splendidissimus applied by Muller to the very 

 nearly allied Gloss, heteroclita*. To that spe- 

 cies, it indeed, judging from the description, 

 bears a strong resemblance — but belongs to a 

 different division of the genus : — to that de- 

 fined as having more than six stomachal lobes, 

 which are more or less pinnate, and termed 

 " Lobina" by Moquin-Tandon (p. 369. 2nd edit.). This is the genus 

 Htemocharis of Filippi (not of Savigny) : the species here described 

 may be termed Hcem. Eachana by those who consider the characters 

 of generic value. 



Pontobdella l&vis, Blainville, Moquin-Tandon, Monog. Hirud. 



p. 290. 2nd edit. 



A Pontobdella in my collection agrees with this species in all the 

 detailed characters assigned to it in the work referred to, in which 

 the description is taken from Blainville's in the ■ Diet. Sci. Nat.' 

 t. 47. 1827, p. 243. The species differs from P. muricata and P. ver- 

 rucata, as its name denotes, in being smooth ; which it is all over the 

 surface. Where the specimen described by Blainville was procured 

 was not known ; but it is stated to have been sent to him by M. Pa- 

 retto of Genoa. Mine, which may be noted as 4 inches in length, 

 was obtained alive in April 1838, either at Portpatrick or Donaghadee 

 by Capt. Fayrer, R.N., who commanded the mail steam-packets be- 

 tween these ports. This gentleman remarked at that period, when 

 sending me the specimen, that he found it in the bottom of a fisher- 

 man's boat, into which it must have been brought with sea- weed, 

 then being gathered for manure at low-water. This Pontobdella 

 gave out to the spirits in which it was put for preservation a beau- 

 tiful scarlet colour. A specimen of P. muricata which I lately (Oct. 

 1846) received imparted a beautiful and intense green colour to the 

 spirits in which it was placed. 



Notes. 

 Ditrupa subulata, Berkeley. 

 The only part of the coast on which this interesting species has 

 hitherto been noticed being the north-west (Zool. Jour. vol. v. p. 424), 

 it may here be mentioned that specimens dredged by Mr. MacAn- 

 drew from forty fathoms, and still deeper water off the Old Head of 

 Kinsale and Cape Clear, have been kindly given to me by that gen- 

 tleman, as have others by Mr. Stutchbury (the able Curator of the 



• Muller, ' Helminthica,' p. 50, where a very full description is given of 

 the species. 



