. Bulletin. Science; Natural history; Natural history. 110 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. B ## o*.v>X*%*** c% $> ***i «**•»*• *» Fig. 3. A representative metaphase spread (A) and karyotype (B) for Eleutherodactylus rayo. head width, males (), females (^); snout length, males (), females (); loreal length, males () females (); length of orbit, males (), females ( ); height of tympanum, males (), females (); hindlimb length, males (), f
. Bulletin. Science; Natural history; Natural history. 110 SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. B ## o*.v>X*%*** c% $> ***i «**•»*• *» Fig. 3. A representative metaphase spread (A) and karyotype (B) for Eleutherodactylus rayo. head width, males (), females (^); snout length, males (), females (); loreal length, males () females (); length of orbit, males (), females ( ); height of tympanum, males (), females (); hindlimb length, males (), females (); tibia length, males (), females (). Note non-overlapping in tympanum height and tibia length to produce strong sexual dimorphism. Karyotype.—Seven paratypes (CRE 3184[2], 3236-39, 9770) were examined karyologically using the technique of Patton (1967) as modified by Lowe et al. (1966). 122 spreads were counted, three were photographed and the individual chromosomes measured (Table 1), and an idiogram constructed (Fig. 2). The diploid number (2N) is 22 and the nombre fundamental () is 36. The chromosomes form a gradually descending series with no obvious size groupings. Chromosome pairs (centromere placement according to the system of Levan et al. 1964), 1,3,5,6 and 7 are metacentric; 4 is submetacentric; 2 is subacrocentric and 8-11 are acrocentric (Fig. 3).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Southern California Academy of Sciences. Los Angeles, Calif. : The Academy
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