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A Remarkable New Centrolenid Frog from Colombia with a Review of Nuptial Excrescences in the Family

John D. Lynch and Pedro M. Ruiz-Carranza
Herpetologica
Vol. 52, No. 4 (Dec., 1996), pp. 525-535
Published by: Allen Press on behalf of the Herpetologists' League
Stable URL: http://www.jstor.org/stable/3893210
Page Count: 11
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A Remarkable New Centrolenid Frog from Colombia with a Review of Nuptial Excrescences in the Family
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Abstract

Cochranella armata is named from cloud forests in the Sérrania de los Paraguas in the Cordillera Occidental of western Colombia. Males have patches of cornified nuptial spines on the thumb, and the species appears allied to C. balionota and C. griffithsi. Prepollical spines seem to be universal in the family and are concealed in all but one species (Cochranella spinosa). Type-I nuptial pads occur in most species of Centrolene (80%) and Cochranella (70%) and are less common in species of Hyalinobatrachium. Type-II nuptial pads occur in four species of Centrolene, but they may be only rudimentary versions of Type-I pads. Rudimentary nuptial pads occur in at least four species of Hyalinobatrachium. No nuptial pads are known in six species of Cochranella. /// Se nomina Cochranella armata de bosques nublados de la Sérrania de Los Paraguas en la Cordillera Occidental de Colombia. Los machos tienen almohadillas nupciales de espinas cornificadas en los pulgares, y la especie parece tener parentescos con C. balionota y C. griffithsi. Espinas prepolices parecen uniforme dentro la familia pero son escondidas en todos menos una especie. Se encuentra almohadillas de Tipo I en la mayoria de especies de Centrolene (80%) y Cochranella (70%), pero en pocas especies de Hyalinobatrachium. Se encuentra almohadillas de Tipo II en solamente cuarto especies de Centrolene, pero este tipo puede ser solamente una versión reducida de Tipo I. Se encuentra almohadillas reducidas en por lo menos cuarto especies de Hyalinobatrachium. Seis especies de Cochranella carecen almohadillas nupciales.

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