. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 54 Mr. C). R. Naraj^an Rao on some part of the body which is quadrilateral in cross-section hears dorsal and ventral wide and lateral, sometimes deep canals. Total number of segments 270-385. The pre- clitellar segments, nearly twice the size of the postclitellar ones, bear a number of prominent secondary annular ridges and grooves. The clitellar segments with the latero-ventral wings are the broadest and soft, bearing ventrally irregular grooves and ridges. The number of segm
. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. 54 Mr. C). R. Naraj^an Rao on some part of the body which is quadrilateral in cross-section hears dorsal and ventral wide and lateral, sometimes deep canals. Total number of segments 270-385. The pre- clitellar segments, nearly twice the size of the postclitellar ones, bear a number of prominent secondary annular ridges and grooves. The clitellar segments with the latero-ventral wings are the broadest and soft, bearing ventrally irregular grooves and ridges. The number of segments surrounding the anus can hardly l)e counted, owing to extreme shortness. Anus a large longitudinal slit^ dorsal in position, borne on a swollen cone or on the unmodified posterior region. Prostomium pro- or zygo-lobous. Fig. A seta {b) from the middle of body of QhqMclrihisfluviatilis, x 75. Dorsal pores absent. In the preclitellar region the seta-distance is aa, equal to or slightly less tiian he or dd ; bc = dd ; ab — cd. In the post- clitellar region aa : ah : he : cd : dd=2 : ^ : 1 : ^ : 1^ or 2. A seta from the preclitellar region measures nearly 0*75 mm. long and 0'12 broad. The skin is raised in a tent-like fashion over the seta in the middle and hindw part of body. The projecting part of the setae is ornamented by delicate annulations, and the stem embedded in the follicle bears a few irregularly-disposed spines, and the whole structure is marked by fine striations, the distance between any two strife being 1150 /x. The first segment is 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 London, Taylor and Francis, Ltd
Size: 791px × 3162px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookce, booksubjectbotany, booksubjectgeology, booksubjectzoology
