44 NEPHELID^. 



stones on the wet shore. They swim with ease, and crawl in the 

 usual manner along the ground. They deposit their eggs in multi- 

 parous capsules. 



4. NEPHELIS. 



Heluo, Oken in Schweigg. Handb. 593. 



Nephelis, Savig. Syst. Annel. 107 & 117- Lam. An.s. Vert. 2de edit. 



V. 527. Moq.-Tandon, Monogr. 301. Dies. Syst. Helm. i. 456. 

 Erpobdella, Blainville in Jjam. An. s. Vert. v. 296 ; Diet, des Sc. nat. 



xlvii. 258, & Ivii. 563. Mueller, Hirud. Berol. 11. 



Char. Body linear-elongate, widening a little and insensibly back- 

 wards, flattened, of numerous equal rather indistinctly defined rings, 

 acephalous : mouth large, with a semielliptical protrusile lip formed 

 of three segments constituting a sort of sucker : eyes 8, in two sub- 

 arcuate series on the first and third rings : sexual orifices, the male 

 between the 31st and 32nd, and the female between the 34th and 

 35th rings. Anal sucker obliquely terminal, centrally attached, of 

 medium size : vent large, semilunar. Ova in a horny capsule affixed 

 horizontally, and cemented to subaquatic bodies. 



1. N. octoculata. 



Hirudo depressa nigra abdomine* subcinereo, Linn. Faun. Suec. 365. 



no. 1273. 

 Hirudo octoculata, Linn. Syst. x. 649, xii.1079; Faun. Suec. 2nd edit. 



506. Blumenb.Elem.Nat. Hist. 244. Turt. Gmel.i\. 69; Brit. Faun. 



129. Penn. Brit. Zool. iv. 71 (1812). Willdenow, Princip. Bot. 



142. 

 Hii'udc vulgaris, Miill. Verm. i. ii. 40; Zool. Dan. Prod. 220. no. 2661. 



Stew. Elem. ii. 356. Johnson on Medic. Leech, 33 ; Furth. Obs. 29, 



with a plate. 

 Erpobdella vulgaris. Lam. An. s. Vert. v. 296; 2de edit. v. 528. 



Blainville in Diet, des Sc. nat. xlvii. 259, hoi. 564. D. Chiaje, 



An. s. Vert. Nap. i. 49. Egidy, Bluteg. 134. f. 64. 

 Nephelis tessellata, Savig. Syst. 117. 

 Nondescript Leech, lire's Rutherglen, 236. 

 La Neplielis vulgaire, Duges in Ann. des Sc. nat. xv. 312 & 335 (1828), 



pi. 9. f. 8 (the cocoon). 

 Nephelis vulgaris, Brightwell in Ann. ^- Mag. Nat. Hist. ix. 13. pi. 1. 



f. 9-14. Dies. Syst. Helm. i. 456. 

 Nephelis octoculata, Moq.-Tandon, Monogr. 302. pi. 3, fig. omn. 



W. Thompson in Ami. 8f Mag. Nat. Hist, xviii. 389. 

 Hirudo octo-oculata seu vulgai'is — The eight-eyed Leech, Daly ell , 



Pow. Great, ii. 14. pi. 2. f. 1-19. 



Hab. Stagnant and still-running water. 



Obs. From 1 to 1^ inch long, 2 lines broad. The margins are 

 rather sharp and crenulate, and usually yellowish or fawn. The 

 back is variously coloured, — reddish-brown, unicolorous or speckled 

 with yellowish and black dots and lines, or prettily tessellated with 



