. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. New data on the Hierro Giant lizard 449. O ! 2 3 4 cm i f » « « Fig. 19: Series of excrements of the Hierro Giant lizard. Renal excreta is missing. Photo A. Machado. appearing end is blunt with almost the same thickness as the middle part. On the contrary, the other extreme shows a more or less acute point that ends in a filamentary fibrous prolongation of variable size and form (straight and hairlike, arched, looped, mucronated, etc). This "filament" is a
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. New data on the Hierro Giant lizard 449. O ! 2 3 4 cm i f » « « Fig. 19: Series of excrements of the Hierro Giant lizard. Renal excreta is missing. Photo A. Machado. appearing end is blunt with almost the same thickness as the middle part. On the contrary, the other extreme shows a more or less acute point that ends in a filamentary fibrous prolongation of variable size and form (straight and hairlike, arched, looped, mucronated, etc). This "filament" is always shorter than the main body. The length varies from 2 to 6 or even 9 (maximum) cm (average medium size is 3—4 cm) and its diameter from to 12 mm (average mm). Weights are given in table II. Table II: Excrement size class weights (in grams). Category Sector I Sector II Total Size Number Weight Number Weight Number Weight Small 17 13 30 Medium 21 29 50 Big 10 10 20 Total 48 52 100 (Maximum weight = gr) Because of the fibrous constitution, they are moderately resistant. Their texture is thus rough and of dull aspect when fresh, varying from dark brown to blackish brown. One can easily distinguish vegetable fibres or poorly digested leaves on the surface, but only in few cases remains of insects are visible. Excrements of Gallotia galloti caesaris are, on the other hand, "earthy" and composed almost entirely of insect remains, being much smaller and lighter: 10—15 mm length, 3—5 mm diameter, and a weight of some g (average of 32). Moreover, both ends are equally 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 Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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