Plagiostomata of the Pacific. Pt. I. Fam. Heterodontidae / by N. de Miklouho-Maclay and William Macleay.
- Nicholas Miklouho-Maclay
- Date:
- [1878]
Licence: Public Domain Mark
Credit: Plagiostomata of the Pacific. Pt. I. Fam. Heterodontidae / by N. de Miklouho-Maclay and William Macleay. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![the length of the fifth, and much farther from the second than the distance between the second and third; the dorsal spines very strong, and more than half the length of the fins; the fins them- selves more broadly rounded at the apex, and slightly emarginate behind; the first dorsal fin commences a little in advance of the vertical from the posterior root of the pectoral; the anal fin reaches almost to the caudal, in this particular alone, agreeing with H. galeatus; the antero-inferior caudal lobe large, and obliquely truncate at right angles to the anterior edge of the posterior lobe, which is small and narrowly incised at its iunction with the other; the pectoral fins very large and rounded at the apex. The colour seems to have been brownish black above, and brownish white beneath; the scattered black spots on the body and fins mentioned in the descriptions of the fish are not traceable in my specimen. Heterodontus Qdoyi. Oestraeiqn Quoyi. Freminv. Mag. Zool. 1840, pi. 3 ; Gunth. Cat. 8, p. 416. Cestracion pantlierinus. Valenc. in Voy. Venus, Zool. p. 350, pi. 10, fig. 2. Heterodontus Quoyi. Dum. lchthyol. tome 1, p. 427 ; teeth pi. 3, figs. 16—17. The figure (pi. 26) is copied from the Mag. Zool. Only one specimen of this species is known; it is about 2 feet long, and was taken at the Gallapagos Islands during the voyage of the “Venus.” The descriptions given by Dumeril and Gunther, the only authorities attainable by me, are short, and leave out much that it would be desirable to know, such as the form of the caudal fin, &c. ; but sufficient is given to shew that the species it most resembles is H. Phillipi, and that it is quite distinct from that. According to those des- criptions the head is proportionally smaller than in H. Phillipi the snout less obtuse; the first dorsal fin commences well behind the extremity of the base of the pectorals, and has its posterior extremity prolonged over to the vertical from the ventrals ; the second dorsal more distant from the posterior border of the ven- [12]](https://iiif.wellcomecollection.org/image/b22367913_0014.jp2/full/800%2C/0/default.jpg)
