( Parker and Parker, 1999)įrilled sharks have never been kept in captivity. Sharks in general do not care for their young after their birth (Parker and Parker, 1999). There is little, if any, information on parental investment in frilled sharks.
![frilo shark frilo shark](https://www.cdiscount.com/pdt2/4/6/9/1/700x700/auc0884504213469/rw/theatre-marionnette-lownu-13-hammerhead-shark-pelu.jpg)
Males and females come together only to mate. Male sharks must grab females, maneuver their bodies so that he can introduce his claspers to pass sperm into the vent. ( Compagno, 1984 Miller and Lea, 1972 Nelson, 1994 Tricas, et al., 2002)įertilization in all sharks is internal, taking place in the egg tubes or oviducts of the female. Length is usually 2 meters (Miller and Lea, 1972). The teeth are alike both on the upper and lower jaws, with three elongate, sharp cusps separated by two intermediate ones (Taylor et al., 2002 Nelson, 1994). The first gill is continuous across the throat, while all the gills are surrounded by frilly margins of skin-hence the name "frilled shark." The snout is short and the lower jaw is long. Chlamydoselachus anguineus has six gill openings (most sharks have five). The pectoral fins are short and rounded (Taylor et al., 2002). They have a small dorsal fin located well towards the tail, above the large anal fin, and in front of the highly asymmetric caudal fin. The body tends to be a chocolate brown color. Range depth 100 to 1300 m 328.08 to 4265.09 ftįrilled sharks, or eel sharks (Taylor et al., 2002), have a long slender body with an elongate tail fin, giving them an eel-like appearance (Compagno, 1984).They are mostly benthic and occur at depths from 100 to 1,300 meters. ( Compagno, 1984)Ĭhlamydoselachus anguineus, is found on continental shelves and the nearshore areas of large islands, although they are occasionally reported in open waters. They have been found almost worldwide, including the eastern Atlantic coast of northern Norway, the western Indian Ocean near South Africa, the western Pacific near New Zealand, and the eastern Pacific near the coast of Chile. They are occasionally kept in aquaria, and are harmless to man.Frilled sharks are wide ranging. They are often the bycatch of deep bottom trawls and gillnets, and are utilized for fishmeal and meat. In captivity, they have a habit of swimming with the mouth open and it may be that their conspicuous white teeth are used to lure prey. Their gestation period is probably long (1-2 years). They may reproduce all year in deep water, but mate in the spring off of Japan. Pregnant females have very large abdomens. Reproduction – Ovoviviparous, with 6-12 pups per litter. Pups in a litter may feed on huge uterine eggs 4.3-4.7 inches long. Prey – Deepwater actively-swimming squid and fishes. Widely but patchily distributed world-wide, rare to uncommon, usually in deep water. These sharks frequent off-shore shelves and upper continental and island slopes of 164 to 4921.3 ft deep, but are occasionally located at the surface. Widely spaced, needle-sharp, slender three-cusped teeth.īenthic, epibenthic and pelagic. Males mature at 3 to5.3 ft and females mature at 4.3 to4.4 ft. The shark is about 1.3 ft long when it is born.
![frilo shark frilo shark](https://media-cache.magni.dk/products/3108/cache/3108.jpg)
Its pectoral fins are smaller than its pelvic fins.ĭark chocolate-brown, brownish-grey, or brownish-black. Its dorsal fin is low and much smaller than the anal fin. It has six pairs of curved gill slits, with the lower ends of the first pair connected under its throat. This shark has an elongated eel-shaped body, and a flattened snake-like head with a very short snout and a large terminal mouth.