. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. 511 etc.; tliey run rapidly laterally and backwards, and live on mites and small insects. Fam. Chernetidae. Chdifer cancroides L. Book-scorpion -with two eyes. OMslum ischnosccles Herm., with four eyes. Chthonius trombidioidcs Latr. (fig. 412). Order 8.—* Spider-like animals ivith separated head and thorax, with elongated, segmented abdomen; sub-chelate chelicerce and pediform pedipalpi. Respiration is effected by means of trachece. The Solifugai ap- proach insects in t
. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. 511 etc.; tliey run rapidly laterally and backwards, and live on mites and small insects. Fam. Chernetidae. Chdifer cancroides L. Book-scorpion -with two eyes. OMslum ischnosccles Herm., with four eyes. Chthonius trombidioidcs Latr. (fig. 412). Order 8.—* Spider-like animals ivith separated head and thorax, with elongated, segmented abdomen; sub-chelate chelicerce and pediform pedipalpi. Respiration is effected by means of trachece. The Solifugai ap- proach insects in the segmentation of the body. The cephalo-tho- rax is divided into two regions of which the an- terior is comparable to the insect head, the pos- terior (composed of three segments) to the insect thorax. The long cylin- drical abdominal region, which is composed of nine to ten segments, is quite distinct (fig. 413). The body is closely covered with hairs. The oral apparatus consists of powerful chelicerae, which end in a large vertically placed chela, the lower arm of which can be moved perpendicularly against the upper. The pedipalpi serve as ambulatory legs, but are with- out claws, which are found only on the three posterior pairs of legs. The latter arise from the three free thoracic rings, and bear peculiar cutaneous lamellae at their base. The anterior pair of legs belongs to the head and may be considered as a second pair of pedipalpi (maxillary palps). The Solifugce pos- sess two large projecting simple eyes, and respire like insects by * L. Dufour, " Anatomic, physiologic et histoire naturelle des Galeodcs,"' Comptcsrendus d I'acad. dcs sciences, Th. Hutton, " Observations on the habits of a large species of Galeodes," Ann. and May. of Aat. Hist., XII., FIG. 413.— GaleoJtt arancohJes (regne animal).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - color
Size: 1335px × 1871px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1800, bookcollectionbiodiversity, bookdecade1890
