SNAKES OF MADAGASCAE. 371 



8. TyPHLOPS MADAGASCARiENSis Boettg. Abb. Senckenb. Ges. 

 xi. 1877, p. 3, pi. i. fig. 1 ; Bouleng. t, c. p. 25. 



Madagascar (Nossi Be). 



9. Typhlops grandidieri Mocqiiard, Bull. Mus. Paris, 1905, 

 p. 287. 



Madagascar. 



Family B o i D .e. 

 Synopsis of the Genera. 



I. Head distinct from neck ; scales smooth or unicarinate. 



Scales smooth ; labials with deep pits Coralhis. 



Scales smooth; nasals separated by small scales; tail short (20-41 



subcaudals) Boa. 



Scales keeled ; nasals separated by a pair of internasals ; tail long (120- 



133 subcaudals) Casarea. 



n. Head not distinct from neck ; scales tri- or quinciuecarinate Bolieria. 



1. CORALLUS. 



Daud. Hist. Kept. v. p. 106 ; Bouleng. Cat. Sn. i. p. 99. 



1. CoRALLUS MADAGASCARIENSIS. 



Xiphosoma madagascariense Dum. & Bibr. Erp. Gen. vi. p. 549. 

 Corallus madagascariensis Bouleng. t. c. p. 103. 

 Madagascar. 



" 2. Boa. 



Linn. Syst. Nat. i. p. 373 ; Bouleng. Cat. Sn. i. p. 116. 

 Two species : — • 



11-16 scales round the eye; scales in 59-65 rows B. dumerilii. 



6-9 scales round the eye ; scales in 69-77 rows B. madagascariensis. 



1 . Boa dumerilii. 



Aarintophis dttmerili Jan, Icon. Gen. p. 83, 1. 1, pi. ii. 



Boa dumerilii Bouleng. t. c. p. 120. 



Madagascar. 



2. Boa madagascariensis. 



Pelophilus 'inadagascariensis Dum. & Bibr. Erp. Gen. vi. p. 524. 



Boa viadagascariensis Bouleng. t. c. p. 120. 



Madagascar, 



3. Casarea. 

 Gray, Zool. Miscell. p. 43; Bouleng. Cat. Sn. i. p. 121. 



1. Casarea dussumieri. 



Boa dussumieri Sclileg. Pbys. Serp. ii. p. 396. 

 Casarea dussumieri Bouleng. t. c. p. 121. 

 Round Island, near Mauritius. 



