Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . E. N. FISCHER. OEL HCLiOTVfE CO. PLATE 71. I 1I PLATE 71. I IIDASYBATIDAE. Fig. 1-2. Dasybatus guttatus. M. C. Z. 639 (Page 391). Fig. 3. Dasybatus C. Z. 23 (Page 398). Fig. 4-5. Taenidra lymma. M. C. Z. 620 (Page 399). i 1, 3, 4. Dorsal view. ^ 2, 5. Ventral view. j Rigidity of the disk around tlie head and tlie branchial chamber is secured by the elongation and firmness of the propterygial segment of the pectoral ba,se. The copula, hbr, unlike that of the Raiidae,is segmented; anteriorly, in the
Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . E. N. FISCHER. OEL HCLiOTVfE CO. PLATE 71. I 1I PLATE 71. I IIDASYBATIDAE. Fig. 1-2. Dasybatus guttatus. M. C. Z. 639 (Page 391). Fig. 3. Dasybatus C. Z. 23 (Page 398). Fig. 4-5. Taenidra lymma. M. C. Z. 620 (Page 399). i 1, 3, 4. Dorsal view. ^ 2, 5. Ventral view. j Rigidity of the disk around tlie head and tlie branchial chamber is secured by the elongation and firmness of the propterygial segment of the pectoral ba,se. The copula, hbr, unlike that of the Raiidae,is segmented; anteriorly, in the portion, it broadens toward the suspensorium, hyomandi-bular, hin. The ceratobranchials are more or less consolidatefl and enlarged, as also the basihyals. Thebranchial ray, or rays, at the outer ends of the ceratohyals and ceratobranchials are attached to the basesof the pectoral at their outer ends but are not modified. Mem. Mus. Comp. Zool., Vol. 36. Plagiostomes. Plate 71.
Size: 1902px × 1313px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1913
