Alfred William Alcock was a British physician, naturalist, and carcinologist.
The bristly catshark iis a species of shark belonging to the family Pentanchidae, the deepwater catsharks. This shark is found from southeastern India and the Andaman Islands, between latitudes 15° N and 5° N, at depths between 200 and 300 m. Its length usually ranges from around 20–26 cm (7.9–10.2 in), and it is regarded as the smallest catshark of Bythaelurus.
Nettenchelys is a genus of eels in the duckbill eel family Nettastomatidae.
The froghead eel is an eel in the family Colocongridae. It was described by Alfred William Alcock in 1889. It is a marine, deep-water dwelling eel which is known from the Indo-west Pacific, including East Africa, Madagascar, and southern Japan. It dwells at a depth range of 300–1134 metres. Males can reach a maximum total length of 50 centimetres.
Bathymyrus echinorhynchus is an eel in the family Congridae. It was described by Alfred William Alcock in 1889. It is a tropical, marine eel which is known from the Arabian Sea, in the northern and western Indian Ocean.
Bathycongrus macrocercus is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Andaman Islands, in the eastern Indian Ocean.
Bathycongrus nasicus is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Indian Ocean, including the Arabian Sea, the Bay of Bengal, and the Gulf of Aden. It dwells at a depth range of 230–1040 metres.
Gnathophis musteliceps is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, deep water-dwelling eel which is known from the Bay of Bengal, in the western Indian Ocean. It dwells at a depth range of 265–457 metres.
Promyllantor purpureus is an eel in the family Congridae. It was described by Alfred William Alcock in 1890. It is a marine, deep water-dwelling eel which is known from the Indo-Western Pacific, including India and Indonesia. It is known to dwell at a depth range of 1,120 to 2,250 metres.
Rhynchoconger squaliceps is an eel in the family Congridae. It was described by Alfred William Alcock in 1894, originally under the genus Congromuraena. It is a marine, tropical eel which is known from the Bay of Bengal, in the western Indian Ocean. It is known to dwell at a depth of 234 metres (768 ft).
Xenomystax trucidans is an eel in the family Congridae. It was described by Alfred William Alcock in 1894. It is a marine, deep water-dwelling eel which is known from Maldives and Laccadives, in the western Indian Ocean. It is known to dwell at a depth of 1,316 metres (4,318 ft), but is more commonly found at a depth range of 400 to 800 metres. Males can reach a maximum total length of 64.5 centimetres (25.4 in).
Gavialiceps taeniola is an eel in the family Muraenesocidae. It was described by Alfred William Alcock in 1889. It is a marine, deep water-dwelling eel which is known from the Indian Ocean, including the Arabian Sea, Oman, and the Bay of Bengal. It dwells at a depth range of 350 to 1,046 metres. Males can reach a maximum total length of 64.7 centimetres (25.5 in).
Nettenchelys dionisi is an eel in the family Nettastomatidae. It was described by Alberto Brito in 1989. It is a marine, deep water-dwelling eel which is known from the Canary Islands, in the eastern central Atlantic Ocean. It dwells at a depth range of 350 to 400 metres, and leads a benthic lifestyle. Males can reach a maximum total length of 62 centimetres (24 in).
Nettenchelys erroriensis is an eel in the family Nettastomatidae. It was described by Emma Stanislavovna Karmovskaya in 1994. It is a marine, deep water-dwelling eel which is known from Error Seamount, in the western Indian Ocean. It dwells at a depth range of 395 to 420 metres. Females can reach a maximum total length of 33.5 centimetres (13.2 in).
Nettenchelys exoria is an eel in the family Nettastomatidae. It was described by James Erwin Böhlke and David G. Smith in 1981. It is a marine, deep water-dwelling eel which is known from the western central Atlantic Ocean, including Florida, USA and the Bahamas. It dwells at a depth range of 277 to 494 meters. Males can reach a maximum total length of 46.7 centimeters (18.4 in).
The bridge duckbill eel is an eel in the family Nettastomatidae. It was described by Peter Henry John Castle and David G. Smith in 1981. It is a marine, deep water-dwelling eel which is known from the western Pacific Ocean, including New Caledonia, the Philippines, and Indonesia. It dwells at a depth range of 400–412 metres (1,312–1,352 ft). Females can reach a maximum total length of 43.1 centimetres (17.0 in).
Nettenchelys inion is an eel in the family Nettastomatidae. It was described by David G. Smith and James Erwin Böhlke in 1981. It is a marine, deep water-dwelling eel which is known from a single specimen discovered near North Bimini Marine Protected Area in 1964. It is known to dwell at a depth range of 458 to 531 meters. Males can reach a total length of 42.3 centimeters (16.7 in).
Nettenchelys paxtoni is an eel in the family Nettastomatidae. It was described by Emma Stanislavovna Karmovskaya in 1999. It is a marine, tropical eel which is known from Vanuatu, in the western Pacific Ocean. The only known specimen had a total length of 24.8 centimetres (9.8 in), and was recovered from the stomach contents of a sea snake.
The pygmy pikeconger or pygmy duckbill eel, is an eel in the family Nettastomatidae. It was described by David G. Smith and James Erwin Böhlke in 1981. It is a marine, tropical eel which is known from the western central Atlantic Ocean, including Venezuela and the Gulf of Mexico, and possibly more locations. It is known to dwell at a depth range of 128 to 280 meters. Males can reach a maximum total length of 20.1 centimeters (7.9 in).
Dysomma bucephalus is an eel in the family Synaphobranchidae. It was described by Alfred William Alcock in 1889. It is a tropical, marine eel which is known from the Indo-Pacific. It is known to dwell at a maximum depth of 353 metres.
