Ichnotropis bivittata bivittata Bocage, 1866

Parrinha, Diogo, Calado, Francisco M. G., Marques, Mariana P., Bauer, Aaron M. & Ceríaco, Luis M. P., 2025, Echoes of a lost museum: Revision of the herpetological collections sent by Barbosa du Bocage from the Lisbon Museum to the British Museum of Natural History, Vertebrate Zoology 75, pp. 353-404 : 353-404

Ichnotropis bivittata bivittata Bocage, 1866 *

Specimens.

Angola: Duque de Bragança : BMNH 1946.9.3.47 –48 [ syntypes, originally BMNH 1866.6.11.3 –4; Figs 18 , 19 ] .

Comments.

Bocage received several specimens of this lacertid collected by Bayão from Duque de Bragança, two of which he sent to the British Museum under the name Ichnotropis bivittatus on 25 May 1866 ( NHMA /DF/GüntherColl/16/1/110 ). In a letter dated 19 June 1866, Günther refers the specimens to “ Algira ( Tropidosaura) dumerilii ” after comparing them to the type of that species ( AHMB /CE/G79 ). Although Bocage did not agree with this decision ( NHMA /DF/ZOO/200/1/185 ), he followed Günther’s opinion and referred his specimens to Ichnotropis dumerilii instead of describing a new species, although he still included the new name in his account (“ Tropidosaura Dumerilii. Smith. Ichnotropis bivittatus . Nob. Mss. ”, Bocage 1866 a). Bocage also sent a specimen to Peters at the ZMB, who argued for the validity of Bocage’s bivittata ( Peters 1882) . Boulenger (1887) first cited the British Museum specimens as types of bivittata under the synonymy of Ichnotropis capensis , only later recognizing it as a valid species ( Boulenger 1921). The two specimens in the British Museum and the one in Berlin ( ZMB 5827) are the only surviving syntypes of Ichnotropis bivittata ( Bauer and Günther 1995) . Syntype BMNH 1946.9.3.48 is missing its right arm.

Figures

Figure 18. Syntype of Ichnotropis bivittata (BMNH 1946.9. 3.47). Photos by DP.

Figure 19. Syntype of Ichnotropis bivittata (BMNH 1946.9. 3.48). Photos by DP.