168 MR. G. A, BOULENGER ON THE 
Lacerta littoralis Lehrs, Zool. Anz. 1902, p. 230; Werner, Verh. zool.-bot. Ges. Wien, lii. 1902, 
pp. 882 & 384. 
Lacerta littoralis, var. livadiaca Werner, Verh. zool.-bot. Ges. Wien, lil. 1902, p. 383. 
Lacerta fiumana Werner, Bl. f. Aq.- u. Terr.-K. xvi. 1905, p. 65, and Wiss. Mitth. Bosn. Herzeg. x. 
1907, pp. 660 & 666; Kammerer, Arch. f. Entwicklmech. xxix. 1910, p. 474, pl. xv. ; 
Klaptocz, Zool. Jahrb., Syst. xxix. 1910, p. 417. 
Lacerta fiumana, var. imitans Werner, Mitth. Naturw. Ver. Univ. Wien, vi. 1908, p. 49. 
I will first give a description of the widely distributed form, from the Austrian 
Littoral, Croatia, Dalmatia, Bosnia, Herzegovina, and Montenegro, and various islands 
on the coast of Istria and Dalmatia, to which the above synonymy pertains, and then 
refer to some insular forms which are evidently derived from it, and which have been 
described as vars. lissana, melisellensis, and galvagnii. 
The typical var. fiumana which, in size and coloration, may be regarded as 
connecting the var. campestris with the forma typica, is hardly to be distinguished 
from the former, especially if compared with specimens from Piedmont, where the 
var. campestris does not reach so large a size as on the East Coast of the Adriatic. It 
is very easy to distinguish it from the var. serpa as occurring on the East Coast of the 
Adriatic and on several of its islands, but when Italian examples of the var. campestris 
are taken into consideration, the gaps between the two extremes disappear, and a 
continuous series connecting the two is seen to exist. ‘This variety is also very closely 
related to L. taurica Pall., especially through the form described by Lehrs as L. ionica, 
as I have shown on a previous occasion *, Werner + has even hinted at the possible 
specific identity: of his L. fiwmana with L. taurica and L. ionica, as had been suggested 
by Wiegmann {, who alluded to this lizard under the name of Podarcis merremii Fitz., 
(non Merr.), a MS. name under which L. fiwmana has often appeared in the past. 
However, the constant presence of pterygoid teeth in LZ. taurica § is, in my opinion, 
sufficient to retain that form as a species, which fills in the gap between the more 
primitive group of L. agilis and L. viridis and L. muralis. 
The following description is almost a repetition of that of the var. campestris, and 
it is to me often a matter of difficulty to distinguish small specimens of that form from 
striated specimens of the var. fiwmana. The number of scales across the body appears 
to be the most important diagnostic character, although there is an overlap. 
Head small, its length 5} to 44 times in length to vent in males, 43 to 4? times in 
females; either flat above, as usual in the typical form, or as convex as in var. cam- 
pestris, its depth equal to the distance between the anterior corner or the centre of the 
eye and the anterior border of the tympanum, its width once and a half to once and 
three-fourths in its length; snout obtusely pointed, as long as or a little longer than 
postocular part of head. 
* P. Z.8. 1907, p. 557. + BL. f, Aq.-u. Terr.-K. xvi. 1905, p. 74. £ Arch. f. Naturg. 1837, ii. p. 222. 
§ Ihave not found these teeth in any specimens of yar. fiwmana, any more than in the typical form. They 
are rarely present in the vars. campestris and serpa. 


