Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . ^O-rrrrfK. i:uC CN e. N. flSCt-Efi. DEL. HELiOrtPE CO. PLATE 73. PLATE 73. MYLIOBATIDAE. Fig. 1. Myliobatis aquila. M. C. Z. 623 (Page 431). Fig. 2. Myliobatis C. Z. 636 (Page 430). Fig. 3. maculatus. M. C. Z. 106 (Page 435). Fig. n.\rinari. M. C. Z. 677 (Page 441). Three of the genera of the Myliobatidae are figured here. The fourth, Pteromylaeus, stands be-tween Aetomylaeus and Aetobatus; it has the narrowed head and the separation of the pectorals as inthe latter, but h
Memoirs of the Museum of Comparative Zoölogy, at Harvard College, Cambridge, Mass . ^O-rrrrfK. i:uC CN e. N. flSCt-Efi. DEL. HELiOrtPE CO. PLATE 73. PLATE 73. MYLIOBATIDAE. Fig. 1. Myliobatis aquila. M. C. Z. 623 (Page 431). Fig. 2. Myliobatis C. Z. 636 (Page 430). Fig. 3. maculatus. M. C. Z. 106 (Page 435). Fig. n.\rinari. M. C. Z. 677 (Page 441). Three of the genera of the Myliobatidae are figured here. The fourth, Pteromylaeus, stands be-tween Aetomylaeus and Aetobatus; it has the narrowed head and the separation of the pectorals as inthe latter, but has a different dentition. Myliobatis, fig. 1, differs from the rest of the family in pos-sessing a continuous pectoral along the side of the head, and in absence of the modification of the pectoralrays opposite the lower jaw. In all the genera the propterygial segment of the base of the pectoralextends beyond the antorbital, that is beyond the head. In the very young this .section of the baseappears to be somewhat irregularly segmented, but these indications are transitory, probably ancest
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1913
