REPTIIlA: SQUAMATA: SERPENTES: BOlDAE COWUSCROPANII

P Catalogue of American Amphibians and Reptiles. Henderson, RW. and G. Puorto. 1993. CoraUus crrlpanii. Corallus cropanff (Hoge)

Xenoboa ctcpanii Hoge, 1954:27. m-locality 'Miracatu, State of SioPaulo, Brazil." Holotype, Instituto Butantan 15.200, anadult male, collected by Jose Santos (examined by GP). Corallus ctcpanik Kluge, 1991:48.

Content. COraUw cqanii is monotypic.

De~tlonMaximum SVL is at least 1340 mm. The general habitus is that of a chunky head distinct from the neck, a stout body (midbody circumferenceabout 9.7%of SVL) that exhibits only slight lateral compression, and a short (1418% of body length in males) prehensile tail. Scale counts are available only for males: dorsal scale rows at midbody 29-32; ventrals 179-200;subcaudals 51-53; loreals 2; subloreals 3-4; supralabials 10-14, with well-developed labial pits; infralabials 14, with well-developed labial pits; scales around eye 9- I - I 10; scales between supraorbitals 34; nasals not in contact and Map. Distribution of Corallus ctcpanii. The large, open circle bordered by 3 scales. indicates the type-locality. Solid circles indicate other localities. The dorsal ground color is beige/khaki to olive green. ?he dorsum is patterned with 36-38pale copper todark brownrhomboid- othex neotropical Wines by the low number of dorsal scale rows at shaped markings (4-5 scales wide at midbody) on the body; a series midbody (29-32). ComUus caninus, the species most similar to C. of smaller, more laterally situated, more or less rhomboidal shapes cmpanii, has >60; C. enydnk from southeastern Brasil has >SO. runs the length of the body. The patterncontinues onto the tail. The @icrates cencbtia in southern Brasil has >40 dorsal scale rows at venter is white to dingy yellow; the free edge of the ventral scales is midbody. marked with dark brown, and the extent of the dark brown color becomes greateronthe posterior portion oftheventer. The subcaudals Descriptions. The only description is the original by Hoge are likewise lightly to moderately patterned with dark brown. (1954). Kluge (1991) presented a diagnosis. The hemipenis isweakly bilobed (organ tosubcaudal 7, bilobed at 7); the most proximal flounce is at subcaudal 3, the flounces IIlustrations. Blackandwhite, andcolor, photographsofthe grading into large calyces with scalloped edges distally; coarse head and full body appear in Hoge (1954). A color drawing appears n papillae are set at the apex; and the sulcus spermaticus is forked. in Amaral(1976).

Dlagaosis. Comllus cmpanii may be distinguished from all Mution.r)le soecies isonlv known fromthe vicinitvof

Figure. Holotype of ComNus cropanii. Photograph courtesy of Alma R. Hoge. the type-locality in the state of SoPaulo, Brasil, on or near the coastal Branch, W.R. 1981. Hemipenes of the Madagascan boas Acrnntopbis plain at elevations 4&45 m akve sea level. and Sanzinia, with a review of hemiueneal moruholoav. -. in the Boinae. J. ~ebtol.15:91-99. Fo~silRecord None. Hoge, A.R 1954 [19531. Anew genus and species of Boinae from Bra- zil. Xenoboa cmpanii, gen. nov., sp. nov. Mem. Inst. Butantan Pertlneat Litennw. We are aware of only three specimens 2527-34. ofthis species andvirtually nothing is known about its natural history. Kluge, A.G. 1991. Boine snake phylogeny and research cycles. Mix. Kluge (1991) discussed phylogeny based primarily on skull charac- Publ. Mus. Zool. Univ. Michigan 178:iv + 58 p. ters. Bogert (1968) and McDowell(1979) discussed possible generic McDowell, S.B. 1979. A catalogue of the snakes of New Guinea and relationships of Xenoboa.The hemipenis is described and discussed the Glomons, with specGl reference to those in the Bernice P. by Hoge (19541, McDowell(1979,1987), and Branch (1981). Bishou Museum. Part 111. Boinae and Acrochordoidea (Re~tilia.-. , Serpehtes). J. Herpetol. 13:192. . Etymology. The name cmpanii is a patronym in honor of -1987. Systematics, pp. 350. In RA. Seigel,J.T. Collins,andS.S. Ottorino de Fiori, Baron de Cropani, Director of the Instituto Novak (eds.), Snakes: ecology and evolutionary biology. Mac- Vulcanol6gico at Catania, Brazil. millan Publ. Co., New York.

Remarks. Based on a large suite of characters (primarily Xenoboa skeletal), Kluge (1991) synonymized with CoraIIus to avoid Robert W. Henderson, Section of Vertebrate Zoology, Milwaukee recognition of a paraphyletic taxon (i. e., Cornflus), inasmuch as he C. C. Public Museum, WX) W. Wells Street, Milwaukee, Wisconsin 53233, regarded cmpanii and caninus as sister species. and Giueeppe Puorto, Se@o de Herpetologia, Instituto Butantan, 05503900, SoPaulo, SP, Brasil. Literature Cited Primary editor for this account, Larry David Wilson. Amaral, A. do. 1976. Serpentes do Brasil: iconografii colorada. Bra- zilian snakes: a color iconography. Univ. SoPaulo, SoPaulo. Published 30 November 1993and Copyright @ 1993by the Societyfor Bogert, C.M. 1968. Anew genusandspecies ofdwarfboa from south- the Study of Amphibians and Reptiles. em Mexico. Amer. Mus. Novit. (2354):l-38.