. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 8. Right pectoral girdle and fin (right from outside) of two Psednos. (A) P. christinae Andriashev, 1992, holotype. (B) P. groenlandicus sp. nov., holotype. c, coracoid; , basal cartilaginous lamina; R,, Rs, and R3, radials; sc, scapula. el with symphysis of upper jaw. Lower- most pectoral ray inserted an eye diameter behind prominent posterior tip (retroarti- cular process) of lower jaw and on a ver- tical to about % of postocular distance. Radiograph does not show vertebrae or fin rays, possibly because o


. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Figure 8. Right pectoral girdle and fin (right from outside) of two Psednos. (A) P. christinae Andriashev, 1992, holotype. (B) P. groenlandicus sp. nov., holotype. c, coracoid; , basal cartilaginous lamina; R,, Rs, and R3, radials; sc, scapula. el with symphysis of upper jaw. Lower- most pectoral ray inserted an eye diameter behind prominent posterior tip (retroarti- cular process) of lower jaw and on a ver- tical to about % of postocular distance. Radiograph does not show vertebrae or fin rays, possibly because of lack of ossifi- cation as species of Psednos of same size show distinct vertebrae and fin rays. Sensoiy System (Fig. 3B). No coronal pore. Two nasal pores, about twice as large as nostril diameter, n^ pore level with up- per margin of eye and distinctly above nos- tril. Infraorbital 6(5+1); io, 5 pores situat- ed in semicircle below eye, gradually in- creasing in diameter from 1st to 4th, with 5th smaller than 4th and 6th situated just behind posterodorsal margin of eye. Tem- poral pores 1 + 2, tj round, about times larger than iog; suprabranchial pores 2, each at end of its own tube, situated one above another, lower pore at 52% HL from dorsal end of gill slit. Preoperculo- mandibular 6, position of the pm^ unique to this species of Psednos: situated high, level with iOr, pore, and very close to latter. Chin pores (pmj-pmj spaced at a distance equal to pnij-pmo. Measurements and Counts. HL , HW (), bd (105), bdA (70), preD , preA , mand-anus , anusA , UPL (), notch , LPL (60% UPL), eye (), snout (), io (), postoc (), upj (), gsl (). V unknown, D ca. 38, A ca. 35, P 15(8+1+6), C 6. Color. Skin uniformly light, caudal part of body unpigmented. Margins of dorsal and anal fins black at midlength of fins. Margin of opercular flap also black. Head and belly appear dark b


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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology