130 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



ines. Fore limb to orbit, bind limb scarcely longer, reacbing tbe eigbtb 

 fold from bebind. Tbe inner digit on botb extremities is so sbort as to 

 render tbe members almost 3-3. Tail elongate, slender, subcylindrical. 

 Gular fold represented by a line. 



Measurements, in inches. 



Lines. 



Length of head to angle of mouth 2. 5 



Breadth of head behind eyes 2 



From muzzle to humerus , 5 



From muzzle to groin 16. 5 



Length of tail 17 



Length of posterior limb 3.5 



Batrachoseps pacificus Cope. 

 RESERVE SERIES. 



Catalogue 

 number. 



No of 

 spec. 



Locality. 



"When 

 collected. 



From whom received. 



Nature of 

 specimen. 



6733 

 4006 



Santa Barbara, Cal. 

 San Francisco, Cal 



Dr. Hays . . . 

 R. D. Cutts 



Ale. type. 

 Alcobolic. 



HEMIDAOTYLIUM Tscbudi. 



Classif. der Batrachier, Trans. Neuchatel, 1833, p. .54-94; Bouap., Fauna 

 Ital.,ii, 131,Nro. 10; Fitziuger, Syst. Eept., 33; Baird, Jonrn. Ac.Nat. 

 Sci. Phila., i, 284, 1849; Hallowell, I. c, 1858, 36.5; Gray, Cat. Brit. 

 Mus., 1850, 41; Cope, Proceed. Acad, Phila., 1869, p. 99. 



Desmodactylus, Dum. & Bibr., Erp. Gen., ix, p. 117. 



Tongue adherent anteriorly; digits 4-4; parietal bones fnlly ossified, 

 without fontanelle; two premaxillaries, with fontanelle; prefrontal 

 bone present. 



This genus is only distinguished from Plethodon by the deficiency of 

 its hind foot in digits. Those that remain are quite rudimental. It 

 differs from Batrachoseps in the presence of the prefrontal bone. There 

 is but one species known, and its habits are entirely terrestrial. 



HEMIDACTYLIUM SCUTATUM Tschudi. 



Batr., p. 94 ; Hallow., Jouru. Ac. Phila. (2), iii, p. 366; Strauch, Salam., p. 

 76; Gray, Cat. Batr. Grad. Brit. Mus., ed. i, p. 41. 



Salamandra sciitata, Schleg., Faun. Japon., Amph., p. 119, and Abbild., PI. 40, figs. 4-6. 



Salamandra melanosiieia, Gibbes, Bost. Journ. Nat. Hist., v, p. 89, PI. 10. 



Desmodactylus scutatus, Dum. & Bibr., p. 118. 



Desmodactylus melanostlctus, Dum. & Bibr., p. ,119. 



Batraclwseps scutatus, Bouleuger, Cat. Batr. Grad. Brifc. Mus., ed. ii, 1882, p. 59. 



Whole skin finely and beautifully granulated; viewed vertically, the 

 sides.of head are parallel, the eyes forming the anterior corners, and 

 not projecting beyond the line of head ; muzzle not tapering, but sides 

 nearly parallel, almost entirely truncate, and overhanging lower jaw; 

 eyes nearer muzzle than Pletliodon erytlironotus (viewed from above); 

 outline contracted behind tbe occiput, then expanding to. middle of body 



