Biol. 452 - VERT. NATURAL HISTORY

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Fish Skull Photos

Fish Photos - Part 1

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Actinopterygii - Teleosts (part a)

Order Clupeiformes Family Engraulidae Anchovy	Lateral views show their long jaw with rostrum (snout) extending past lower jaw.	Ventral view showing rounded abdomen & long jaw.
Order Clupeiformes Family Clupeidae Herring	Herring have a slightly upturned mouth.	Herring is upside down to show the sawtooth-like, or "keeled" ventral midline.
Order Cypriniformes Family Cyprinidae Minnow	Minnows have a single dorsal fin.	Some minnows have a subterminal mouth, with a wider upper lip.
Order Cypriniformes Family Catostomidae Sucker	Dorsal & ventral views. Note wide lower lip with papillae.	Lateral view of sucker.
Order Siluriformes Family Ictaluridae Catfish	Catfish have 4 pairs of barbels.	Catfish have an adipose fin & a depressed (flattened head).
Order Esociformes Family Esocidae Pike	Pike have a long body with 1 dorsal fin far back above anal fin.	Dorsal view of pike's head shows the duck-like rostrum.
Order Salmoniformes Family Salmonidae Salmon	Lateral view of body.	Closeup of tail & adipose fin of a salmon.
Order Gadiformes Family Gadidae Cod	Lateral view showing the 2-3 spineless dorsal fins & 1-2 anal fins.	Closeup of head shows single barbel.
Order Batrachoidiformes Family Batrachoididae Toadfish	Dorsal view of toadfish shows flattened (depressed) head with eyes facing upward & numerous photophores.	Ventral view of toadfish, also known as a midshipman for the double row of photophores in abdomen.
Order Gasterosteiformes Family Gasterosteidae Stickleback	Lateral view shows the dorsal spines & strong spindle shaped body.	Ventral view shows the pectoral fins.
Order Gasterosteiformes Family Syngnathidae Pipefish	Lateral view.	Closeup of head, note fusion of long jaws so mouth opening is short.

Actinopterygii - Teleosts (part b)

Order Scorpaeniformes Family Scorpaenidae Rockfish	Lateral view of body.	Ventral view of throat & paired fins.	Lateral view of head showing spines.
Order Scorpaeniformes Family Cottidae Sculpins	Dorsal & ventral views of small sculpin.	Ventral view of throat of a large sculpin.	Dorsal view of the head of a large sculpin.
Order Perciformes Family Centrarchidae Sunfish (ncludes bass)	Large sunfish, compare its dorsal fins with Perch & other sunfish (e.g. bass).	Trio of small sunfish.	Bass have a nearly complete indentation between spiny & nonspiny portions of the dorsal fins.
Order Perciformes Family Percidae Perch	Lateral view of perch.	Ventral view of perch throat.	Closeup of dorsal fins, note gap between spiny & non-spiny dorsal fins.
Order Perciformes Family Stichaeidae Prickleback	Lateral view of large prickleback. The tail region is longer than head & trunk.	Dorsal & ventral views of pricklebacks.	Closeup of throat of a prickleback. The size of the pectoral fins varies between species.
Order Perciformes Family Pholidae Gunnel	Lateral views of different species & age classes.	Lateral view of a large gunnel. Its pectoral fins vary in size between species, but the tail is shorter than the head & trunk.	Ventral view of throat.
Order Perciformes Family Anarhichadidae Wolf Fish or Wolf Eel	Dorsal view of body showing single long dorsal fin.	Ventral view of body shows the long anal fin.	Closeup view of short, rounded head; note absence of pelvic fins.
Order Perciformes Family Scombridae Tuna	Lateral view of body.	Closeup of dorsal fin (retracts into groove) & finlets.	Closeup of tail showing keels on the caudal peduncle.
Order Perciformes Family Gobiesocidae Cling fish	Dorsal view of body shows the depressed (flattened) head.	Lateral view of body, note abscence of scales.	Ventral view showing modified pelvic fins that form suction disc.
Order Pleuronectiformes Family Pleuronectidae Right-eye Flounder	The 2 fish at your left are top side (right) side up. The 2 fish on your right are top side (left) side down.