. Bonner zoologische Monographien. Zoology. 40 ramiiezi has 25—27 vertebrae (Kullander, in prep, c), other large geophagines 27—34 (Gosse, 1971, 1976), Apistogiammoides pucallpaensis 24. The vertebrae number is probably related to the maximum size of the species. A large embedded pseudobranch is present in both Apistogiamma and Apisto- giammoides, and probably all other cichlids. Diagnoses of the family commonly note its absence ( Günther, 1862). The cichlid pseudobranch was discovered and described in detail for Saiothewdon mossombicus (Peters) by Menon (1966). The first hyobranchial in A
. Bonner zoologische Monographien. Zoology. 40 ramiiezi has 25—27 vertebrae (Kullander, in prep, c), other large geophagines 27—34 (Gosse, 1971, 1976), Apistogiammoides pucallpaensis 24. The vertebrae number is probably related to the maximum size of the species. A large embedded pseudobranch is present in both Apistogiamma and Apisto- giammoides, and probably all other cichlids. Diagnoses of the family commonly note its absence ( Günther, 1862). The cichlid pseudobranch was discovered and described in detail for Saiothewdon mossombicus (Peters) by Menon (1966). The first hyobranchial in A- steindachneri and A. agassizii is long, straight, nar- rowest on middle, and at 90° angle to the basihyal, not short and angled as in Cre- nicichla multispinosa Pellegrin, 1903 (Vandewalle, 1971: Fig. 19), or short and broad as in Cichlasoma bimaculatum and Nannacara sp. Günther (1862) gives a variation of four to five branchiostegal rays in cichlids; in Apistogiamma and all other available cichlids there are five. Colour pattern The genus might be recognized on the structure of the colour pattern alone, and it is very important in species level taxonomy. The ground colour of pre- served specim_ens is usually more or less yellowish, the pattern made up of brown- ish to black markings, in live specimens the ground colour is whitish to yellowish, the markings predominantly brownish or black, but in part also iridescent, red, blue, yellow or maroon at least in males. Only preserved material will be consid- ered here though. There is obviously always a sexual dimorphism in colouration in live specimens, but such is not always found in preserved material. Below is given a description of the dark markings. Terms italicized are nominal defini- tions, and used in the species descriptions for brevity. All markings listed are not found all together in any species, and there are markings typical to particular Fig. 7. Dark markings in colour pattern of Apistogiamma. Show
Size: 2610px × 957px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectzoology
