ANCHORELLA. 337 



and which Cuvier has named Anchor etta adunca. The 

 name of Lerneomyzon was proposed by Blainville, in his 

 Monograph, but the term Anchorella, as having the 

 precedence in time, has been generally adopted by suc- 

 ceeding authors. 



1. ANCHORELLA UNCINATA. Tab. XXXV, fig. 9. 



LERMA UNCINATA, Miller, Zool. Dan., i, t. 33, f. 2; Enc. meth., Vers, 



t. 78, f. 7 (copied from Mailer}. 



Lamarck, An. s. Vert., edit. 1st, iii, 231. 



/o/m^o, London's Mag. Nat.Hist.,viii, 565, f. 53. 



Thompson, Report ou Fauna of Ireland, div. In- 

 vcrtcbrata, in Report of Brit. Ass., 1843, 270. 



Fabricius, Faun. Graulaud., 338, No. 328. 

 , , , ,, ,. . ,, . 



Tin-ion s Gmielm, iv, 114. 



Bosc, Hist. Vers, i, 59, t. 1, f. 4. 



SCHISTURUS UNCINATUS, Oken, Lehrbucli der Naturg., B, iii, p. 183. 

 CLAVELLA UNCINATA, Oken, 1. c. 



LEIINEOMYZON UNCINATA, Blainville, Diet. Sc. Nat., xxvi, 122. 

 ANCHORELLA UNCINATA, Nordmann, Mikr. Beitr., ii, 102, t. 8, f. 8, 9, 



t. 10, f. 1-5. 



Kroyer, Tidsskrift, i, 290, t. 3, f, 8. 

 M. Edwards, Hist. Nat. Crust., iii, 519. 

 ANCHORELLA LAGENULA, Enc. Brit., edit. 7th, xxi, t. 502, f. 14. 



Character. Female. The body of the animal is thick, 

 oblong, of a milk-white colour, smooth, and opaque. 

 Head very small, situated at the extremity of a long, 

 slender neck, which has a wrinkled appearance, and is 

 nearly the length of the thorax. The arms spring from 

 the upper portion of the thorax, and are rather short, 

 terminating in a rounded knob or button. At the pos- 

 terior portion of the thorax there is on the middle line a 

 small protuberance, representing the abdomen. The 

 ovarian tubes are cylindrical, straight, smooth, and about 

 the length of the body. Length, from six to eight lines. 



Male. Body globular, terminated in front by a small, 

 conical eminence, at the extremity of which is the mouth, 

 and having at its base one pair of rudimentary appen- 

 dages, and a pair of rudimentary foot-jaws. On the 



22 



