• Thumbnail for Laccotrephes
    surface (similar to a snorkel). Air is fed via the tracheal system and spiracles on the dorsum of the first abdominal segment to an air store under the...
    8 KB (608 words) - 12:22, 27 February 2021
  • Thumbnail for Cookiecutter shark
    not so that binocular vision is extensive. Behind the eyes are large spiracles, positioned on the upper surface of the head. The mouth is short, forming...
    33 KB (3,798 words) - 08:06, 14 July 2024
  • Thumbnail for Coffin ray
    irregular darker and lighter markings. The underside is pale, as are the spiracle papillae. This species grows to a length of 70 cm (28 in), or possibly...
    18 KB (2,064 words) - 23:40, 19 February 2024
  • Thumbnail for Round fantail stingray
    meaning "bed". His account was published in the first volume of the folio Poissons du Nil, de la mer Rouge et de la Méditerranée. Subsequent authors moved...
    10 KB (1,067 words) - 07:10, 6 October 2024
  • Thumbnail for Marbled electric ray
    be identified by the long, finger-like projections on the rims of its spiracles, as well as by its dark brown mottled color pattern, though some individuals...
    33 KB (3,779 words) - 10:33, 25 August 2024
  • Thumbnail for Atlantic torpedo
    Distinctive characteristics include its uniform dark color, smooth-rimmed spiracles (paired respiratory openings behind the eyes), and two dorsal fins of...
    23 KB (2,643 words) - 04:53, 28 August 2024
  • Thumbnail for Coelacanth
    large soft-tissue opercular flap. A spiracular chamber is present, but the spiracle is closed and never opens during development. Also unique to extant coelacanths...
    73 KB (6,348 words) - 22:18, 4 October 2024
  • Thumbnail for Daisy stingray
    the snout. The eyes are medium-sized and followed by somewhat larger spiracles. There is a curtain of skin between the nares, with a fringed, subtly...
    11 KB (1,295 words) - 15:12, 5 July 2023
  • Thumbnail for Bluespotted ribbontail ray
    snout. The large, protruding eyes are immediately followed by the broad spiracles. There is a narrow flap of skin between the nares with a fringed posterior...
    25 KB (2,634 words) - 10:54, 7 January 2024
  • Thumbnail for Pearl stingray
    protrudes somewhat from the disc. The eyes are immediately followed by the spiracles, which are of approximately equal size. There is a flap of skin between...
    9 KB (1,058 words) - 09:17, 6 August 2023
  • Thumbnail for Sharpsnout stingray
    as the disc is wide. The eyes are minute and followed by much larger spiracles. There is a flap of skin between the nares, with a finely fringed posterior...
    9 KB (1,073 words) - 23:33, 10 September 2024
  • Thumbnail for Velvet belly lanternshark
    bases. The five pairs of gill slits are tiny, comparable in size to the spiracles. Both dorsal fins bear stout, grooved spines at the front, with the second...
    23 KB (2,738 words) - 09:22, 22 July 2024
  • Thumbnail for Squatina squatina
    with small eyes positioned dorsally and followed by a pair of larger spiracles. A pair of unadorned barbels occurs in front of the nares, as well as...
    23 KB (2,695 words) - 01:29, 24 August 2024
  • Thumbnail for Atlantic sawtail catshark
    (protective third eyelids). There is a slight ridge below each eye, and a minute spiracle behind. The large mouth is wide and curved, with rather long furrows around...
    11 KB (1,425 words) - 00:50, 21 September 2024