. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). tlie two short oviducts unite to form a vagina with which may be associated receptacuhi semiuis {rs), though more usu- ally these structures open independently in front of the genital orifice and may be single, or paired, or in some ,s even three in number. The testes are cy- lindrical structures whose long, slender, uiJd frequently-contorted vasa deferentia unite just before opening to the exterior. A remarkable copulatory organ is formed liv the terminal joint o
. A textbook of invertebrate morphology [microform]. Invertebrates; Morphology (Animals); Invertébrés; Morphologie (Animaux). tlie two short oviducts unite to form a vagina with which may be associated receptacuhi semiuis {rs), though more usu- ally these structures open independently in front of the genital orifice and may be single, or paired, or in some ,s even three in number. The testes are cy- lindrical structures whose long, slender, uiJd frequently-contorted vasa deferentia unite just before opening to the exterior. A remarkable copulatory organ is formed liv the terminal joint of the i)edipalp of the male (Fig. 207), which bears upon its inner surfjjce a process cojitaining a spirally- coiled tul)e. This tube opens at the ex- Fnj. 207.~PEDiPArp ^^"^["^^^J »/ t^^*^ process, and is filled by tlie OF Mai,i.; SnuEu ^pi^^er Avith spernnitozoa, and during cojui- (after ukktkau). hitiou is inserted into the receptacula semi- uis of the female. The males are usually smaller than the females, and tluir approaches are frequently resisted by the latter, who en- deavor to capture and destroy the persistent swains. In the Attidte a process of courtsiiip has been observed to occur, the male posturing before the female and displaying to their best advantage the highly-colored hairs with which the body is covered. The ova are in nniny forms (Lycosa) attached to the under surface of the abdomen, while in others tiiev are enclosed in a silken cocoon which may either be carried about by the female or suspended in the webs or deposited in protected situations. Two suborders are recognized, accoi-ding as there are two pairs of lung-books or only one. The TcfrapiicMmoui's in- clude the forms with two i)airs of lung-books, among whieh are the Trap-door Sj)iders, Cfenizft, already mentioned, and the Tarantula, Jhnjifh', tlie largest of all the spiders and reputr,^ to attack oven small birds. The have bin ,t single pair of )ooks, the majority o
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1896
