Microcotyle oceanica is a species of monogenean, parasitic on the gills of a marine fish. It belongs to the family Microcotylidae. It was first described...

body which has a depth which fits into its standard length 2.8 times. The dorsal fin is supported by 11 spines and 14 or 15 soft rays while the anal fin...

a meter. The upper jaw projects further forward than the lower jaw. The dorsal fin starts just behind the pectoral fins and runs in a continuous even ribbon...

dark brown, and it has large white dorsal spots. The adult males can show a large black or purple blotch on the dorsal and anal fins and purple patches...

Mediterranean Sea appear to be implicated, as is the seagrass Posidonia oceanica. When herbivores eat seagrass leaves they ingest algal epiphytes and toxic...

"scalloped" look. They have a very large first dorsal fin that is slightly hooked and a smaller second dorsal fin. Scalloped hammerhead sharks are typically...

1758) Luria lurida minima (Dunker, 1853) (taxon inquirendum) Luria lurida oceanica (Schilder, 1930) Luria lurida pulchroides Alvardo & Alvarez, 1964 (taxon...

have a head (anterior) end and a tail (posterior) end as well as a back (dorsal) and a belly (ventral); therefore they also have a left side and a right...

tibia in males. Their carapace is dark brown, with two lighter longitudinal dorsal bands. They occur on Maui, Moloka'i and Lana'i (which were once a single...

its dorsal fin's base. Canthigaster supramacula can measure up to 3.9 centimetres (1.5 in), counting with no dorsal spines, possessing 10 dorsal soft...

similar to that of the two-spotted clingfish (Diplecogaster bimaculata). The dorsal and anal fins are relatively small and situated close to the caudal fin...

zosterae) is less than 6 mm (0.24 in) long and white, with a distinctly spiny dorsal surface. In the British Isles, it is only known from three sites: Slapton...

the ventral margin of the valve, and their girdle is much wider on the dorsal side. The following species are known: Amphora abludens R.Simonsen Amphora...

protrusible and the mouth contains several rows of small teeth. The single dorsal fin has eleven spines and twelve soft rays and the anal fin has three spines...

hair-like protrusions) and appear on the head as well. The teeth are small. Its dorsal fin, comprising about 80 rays, begins over the eye and has longer rays near...

marginal scutes, which become smooth with age. Juveniles also have three dorsal keels; the central longitudinal keel gives younger turtles a serrated profile...

Atlantic Ocean. S. granularis is a large sea urchin, somewhat flattened dorsally and growing to fifteen centimetres in diameter. There are two distinct...

and remove waste material. A short duct that opens to the outside on the dorsal surface is composed of four canals on each side, two posterior and two anterior...