410 ENTOZOA. 



L. ocularis, Cuv., fastens itself to the eyes of Herrings and 

 other fishes ; its horns are simple and short, two larger and two 

 smaller ; the body is slender, and its cords long and not 

 doubled*. 



L. multicornis, Cuv., is another with very numerous, small, 

 and unequal horns, found on the gills of a Serranus in the East 

 Indies. 

 In another group. 



Pen N ELLA, 0/ien, 

 The head is inflated, the nape furnished with two small horns, and 

 the neck corneous ; the body is long, transversely rugose, and pro- 

 vided posteriorly with little filaments arranged like the laminae of a 

 feather. The two very long filaments arise from the commencement 

 of this plumous portion. 



P.Jilosa; Pennatulafilosa,Gme\,; Boccone, Mus.,286 ; Ellis, 

 Phil. Trans., LXIII, xx, 15. From seven to eight inches in 

 length; it penetrates into the flesh of the Xiphias, Thynnus, and 

 Orthagoriscus, tormenting them horribly. It is found in the 

 Mediterranean t. 

 In a third group, 



Sphyrion, Cuv., 

 The head is widened on each side like a hammer, and the mouth is 

 furnished with hooks ; tlie neck is slender, and followed by a de- 

 pressed and cordiform body, which, besides the two long cords, is pro- 

 vided with a thick bundle of hairs %, 

 In a fourth, 



Anchorella, Cuv., 

 The animal is only fixed to the gills by a single production, which 

 originates imderneath the body, and is directed posteriorly §. 

 in a fifth, 



Brachiella, Cuv., 

 We observe two prominences somewhat similar to two arms, which 

 unite in one corneous body, by which the animal fastens itself to the 

 gills II . 

 In a sixth, 



Lernaea itself. This fact, added to the observations of Messrs. Audouin and Milne 

 Edwards, relative to the Nicotlws astaci, has inclined those naturalists to the opinion 

 that most of tiiese Lernceee may be Crustacea that have become monstrous subsequent 

 to being fixed, and that the males remain free; v.hich, according to them, explains the 

 circumstance of our being able to find females only. — Ann. des. Sc. Nat., IX, 345, pi. 

 xlix. Before this idea can be received as definitive, we must be able to find these 

 males. 



* Add L. cypnnacea, L. ; Faun. Suec. 1st edit., fig. 1282; Encyc, Vers. 

 LXXVIII, Q\—L. sinrirensis, Blainv. ;— L. lota, Herm., Nat. Forsch., XIX, 1,6? 

 — L. cyclopterina. 



This group is called Lerneoceres by M. de Blainville. 



t Add Lerncea cirrhosa, la Martin., Journ. de Phys., Sept. 1787, ii, 6 ; — PenneUa 

 diodontis, Chamiss., and Eisenhardt, Act. Nat. Cur., pars II, pi. xxiv. f. 3. 



+ The Chondracanthe lisse, duoy and Gaym., Voy de Freycin., Zool. pi. LXXXVI, 

 f. 10. 



§ Lerncea adunca, Stroem., Sondraoer, pi. i., f. 7, 8 ; common on several Gadi. 



II Bruchiella thynni, Cuv. Rtign. Anim., pi. xv, f. 5; — Lei-nau salmoaea, Gisler; 



