. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 436 A. Machado Table I: Gallotia simony i, male, Reg. no. PMHN 1105. Total length 509 Temporalia 29/33 Snout-vent length 224 Collaria 13 Pileus length Guiaría 32 Pileus width Ventralia long. 18 Head height Ventralia trans. 34 Guiar max. width Dorsalia > 88 Fore-limb 85 Femoral pores > 30 Hind-limb 130±3 Sugdig. 4 toe 31/31 Supraciliaria 8/8 Anal plate width Suprac. granules 12/14 Anal plate height Supralabialia 5/5 Tail whorl num.
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 436 A. Machado Table I: Gallotia simony i, male, Reg. no. PMHN 1105. Total length 509 Temporalia 29/33 Snout-vent length 224 Collaria 13 Pileus length Guiaría 32 Pileus width Ventralia long. 18 Head height Ventralia trans. 34 Guiar max. width Dorsalia > 88 Fore-limb 85 Femoral pores > 30 Hind-limb 130±3 Sugdig. 4 toe 31/31 Supraciliaria 8/8 Anal plate width Suprac. granules 12/14 Anal plate height Supralabialia 5/5 Tail whorl num. 109 The habitat of the Hierro Giant lizard A general view of the Fuga de Gorreta is given in figure 6 and the habitat of the Hierro Giant lizard is marked on a sketch in figure 7. Population distribution limits were established by presence/absence of excrements. Some old excrements found below the habitat, at the base of the cliff, probably were rolled down by the wind9). Actually the population is restricted to the northern protruding rocky ridge of the Tibataje cliff face at Gorreta, and concentrated on the very ridge in a band no broader than 10 m (Sector I "Paso del Pino"), ranging from 350 m altitude to 500 m (cliff extends from 100 to 1200 m approx.); see figure 8. Sector II ("Paso de la Calcosa") is a cut on the rim and represents a wider and better biotope (more protected, better insolation, etc); see figure 12. Average slope is greater than 100 %. My habitat size estimation falls therefore in the range of only 1500—2000 m2, considerably smaller than that given by Martínez Rica (1982). Effective available terrain, including small platforms and ledges, could be three times the former Fig. 6: General view of the Fuga de Gorreta, Valle de El Golfo (El Hierro). Photo A. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of the
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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology
