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Mygalomorphae Theraphosidae
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Avicularia diversipes (C.L. Koch 1842) known previously only from its original description is redescribed along with Avicularia sooretama sp. nov. and Avicularia gamba sp. nov. The three species are endemic to Brazilian Atlantic rainforest. With other Avicularia species, they share a procurved anterior eye row, slender embolus and medially folded spermathecae, whereas they have unusual characters, such as a very long and spiraled embolus (A. diversipes) and spermathecae with multilobular apex (A. sooretama sp. nov.).

Wednesday, 23 February 2011 21:49

Trapdoor theraphosids

Written by Zoltán Mihály Lestyán

...is there such a thing? The answer is: yes. The phenomenon when a spider covers its burrow with a so-called "trapdoor" is well known and characteristic in some mygalomorph families (e.g., Antrodiaetidae, Ctenizidae) and in the family Liphistiidae, but we can also find a few examples of this behaviour in the tarantula family: Theraphosidae.

Monday, 14 February 2011 22:42

Poecilotheria gynandromorf

Written by Stefan Phalagorn Bergström

The word gynandromorph comes from the greek: gyne means female, andros means male and morph means form. A gynandromorph is an animal that are divided half female and half male, they have organs of both sexes and offen haves characteristic of sexual dimorphism like colour/patterns-differences, and differences of antennas, wings, claws and horns. Gynandromorphs has nothing to do about hermafrodism - It´s an rare genetic abnormality that appears in insects, arachnids and crayfishes.

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