Bulletin Volume 100, . 2

Bulletin Volume 100, . 2

List price: US$19.65

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks

Description

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 edition. Excerpt: ...side. In our specimens the two sphincters of the ventral lip are complete, but the two in the dorsal lip are very rudimentary, extending but a very short distance above the angle of the mouth. The distinctive features of Apstein's form, as compared with our specimen, are, first, the smaller number and greater length of the "tentacles," and the complete and conspicuous muscles crossing the dorsal surface of the anterior end of the body, that is, the first and second sphincters of the upper lip and the intermediate muscle, very different from the vestigial corresponding muscles in our specimen. These two subspecies, though apparently distinct, are very similar, as much alike as are the solitary forms of Salpa maxima and S. fusiformis, not so closely similar as S. fusiformis and its form aspera, which differ only in the character of the test. Quoyand Gaimard's Salpa multitentaculata (fig. 134) seems to be the same as Apstein's S. verrucosa, though their figure and description are not sufficiently complete to make one entirely certain. Yet the general form of the body and the position of the four pairs of ' tentacles" seem to indicate probable identity. Quoy and Gaimard's description and figure are given for comparison. Quoy and Gaimard's form seems clearly a Transtedtia, and of the probably two species now known it must belong to multitentaculata. It is either this species or one not as yet rediscovered. The elongation of the posterior "tentacles" in Quoy and Gaimard's and Apstein's specimens is greater than in our form. I therefore assign Apstein's specimen to the main species and our specimen to the subspecies. Fig. 134.--Transtedtia Multitentaculata. Quoy And Gatmard (1826-1834). Quoy and Gaimard's description is as...show more

Product details

  • Paperback | 106 pages
  • 189 x 246 x 6mm | 204g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236520548
  • 9781236520548