OCR Text |
Show 1881.] LACERTA AND ACANTHODACTYLUS. 743 Synopsis of the Species of the genus Lacerta. I. A single large plate on the anal region. 1. Lower eyelid opaque. A. Collar distinctly toothed. a. Four anterior upper labials; a single postnasal. Dorsal scales hexagonal elongate, rather large, two series corresponding to a ventral plate 1. vivipara, Jacq. Dorsal scales granular, small, three series corresponding to a ventral plate 2. taurica, Pall. b. Four anterior upper labials ; two postnasals. Postnasals not regularly superposed 3. stirpium, Daud. Postnasals regularly superposed; occipital moderate; dorsal scales hexagonal elongate, keeled 4. viridis, L. Postnasals regularly superposed; occipital large ; dorsal scales oval, keeled 5. schreiberi, Bedr. Postnasals regularly superposed; occipital large; dorsal scales granular 6. ocellata, Daud. B. Collar even. a. Five anterior upper labials; two postnasals. Dorsal scales perfectly smooth; masseteric disk none; a single row of small plates surrounding the anal 7. punctata, Gray. Dorsal scales perfectly smooth ; masseteric disk very small; 8-10 longitudinal rows of ventral plates 8. brandti, D e Fil. Dorsal scales perfectly smooth; masseteric disk none or very small; 6-8 longitudinal rows of ventral plates 9. danfordi, Grthr. Dorsal scales keeled; masseteric disk large 10. I a vis, Gray. b. Four anterior ivpper labials; a single postnasal 11. muralis, Laur. c. Five anterior upper labials ; a single postnasal. Ventral plates in 6 longitudinal series ... 12. oxycephala, Fitz. Ventral plates in 12-14 longitudinal series 13. galloti, D. & B. 2. Lower eyelid transparent 14. 'perspicillata, D. & B. II. T w o or more large plates on the anal region; occipital very small. Two postnasals; 8 longitudinal series of ventral plates 15. delalandii, M.-Edw. T w o postnasals; 6 longitudinal series of ventral plates 16. tesscllata, Smith. A single postnasal; 6 longitudinal series of ventral plates.... 17. taeniolata, Smith. Out of these 17 species, 3 are unrepresented in the British viz. L. schreiberi, L. oxycephala, and L. brandti. II. Genus ACANTHODACTYLUS, Fitz. ACANTHODACTYLUS BELLII, Gray, Cat. p. 36. As has been supposed by Strauch, Schreiber, and myself, this form is the young of A. vulgaris. |