00 SlfiENID^. 



e-f, g, h. Adult. Gamiola. 



i-k. Hgr. Carniola. M. Drummond, Esq. [P.], 



I. Adult. Carniola. B. Tyndall, Esq. [F.]. 



m-n. Adult & ysf. Maffdalenenerotte. 



0. Hgr. — - ? Miss BeU [P.]. 



p. Skeleton, bad state. ? 



Vak. carrarsB. 



Hypochton Carrarse, Mtzmg. I. e. p. 300. 

 Proteus carrarse, Cope, I. c. p. 103. 



Snout more elongate, very narrow ; twenty-four costal grooves. 

 Dalmatia. 



q. Adult. ? Prof. Qarrara [P.]. 



Vae. zoisii. 



Hypochton zoisii, FUzmg. I. c. p. 298. 

 Proteus zoisii, Cope, I. c. 



' Stouter ; head much shorter, pear-shaped, snout rounded ; twenty- 

 five costal grooves. 

 E.upa, Carinthia. 



r. Adult. Carniola. Vienna Museum. (As typi- 



cal of S. zoisii.) 



Fam. 4. SIRENID.ffi. 



Sirenidse, part., Orai/, Ann. Phil. 1825. 



Proteidese, part., Tachudi, Classif. d. Batr. 



Sirenidse, Oray, Cat. Batr. Qrad. 



TrSmatoderes protfiides, part., Dum. Sf Bibr. Erp. G4n. ix. 



Sirenidse, Cope, Journ. Ac. Philad. (2) vi. 1866.. 



Ichthyodea, part., Strauch, Rev. d. Salam. 



Two genera : — 



Three spiraoula on each side ; digits four. 



1. Siren, p. 86. 

 One spiraculum on each side ; digits three. 



2. Pseudohranchus, p. 87. 



1. SIREN. 



Siren, Linn. S. N'. i. Addenda ; Tachudi, Batr. p. 98 ; Oral/, Cat 



p. 68; Dvm. ^ Bibi: ix. p. 191. 

 Phanerohranchus, part, Leuckart, laia, 1821, p. 260. 



Tongue covering the floor of the mouth, free in front. Jaws with 

 a horny sheath. Vomerine teeth numerous, forming two large 

 patches converging anteriorly. Spiraoula three on each side, below 

 the giUs. Limbs two, posterior absent ; fingers four. 



North America. 



