. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Fig. 6. Series showing external form in the smaller specimens oi Haliclona bilamellata, Dotted lines indicate shape and position of cloaca. that of Haliclona dancoi {sensu Burton, 1929, p. 420), and differs from that species only in texture and the size of the spicules. While the external form is similar in every case, two types of skeleton are found. In some specimens it is chalinoid and consists of a quadrangular network in which the primary fibres contain a double row of spicules coated
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Fig. 6. Series showing external form in the smaller specimens oi Haliclona bilamellata, Dotted lines indicate shape and position of cloaca. that of Haliclona dancoi {sensu Burton, 1929, p. 420), and differs from that species only in texture and the size of the spicules. While the external form is similar in every case, two types of skeleton are found. In some specimens it is chalinoid and consists of a quadrangular network in which the primary fibres contain a double row of spicules coated with a thin layer of spongin and the secondary fibres contain one spicule only, the primary fibres being only one spicule length apart. The oxea in these forms vary from 0-132 to o-i8 by 0-007 to o-oo8 mm. In the remaining specimens, the skeleton is pachychalinoid and consists of a quadrangular network of stout primary fibres, containing from eight to ten spicules serially arranged, but with very little spongin, and secondary fibres containing three or four spicules. The meshes of the network are from 0-3 to 0-4 mm. across and the spicules 0-240 by 0-01 mm. This separation into two types is, however, more apparent than real, for in the second group the skeleton may, in places, be identical with that of the first group, so that we. 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
Size: 1316px × 1899px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
