. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Stromateoid Fishes • HaedricJi I I. Figure 25. Branchial region of Nomeus gronovii, drawing of a cleared-and-stained preparation from a 187-mm specimen, MCZ 35327. Elements identified in Figure 2. groove, the longest spine at least as long as the longest ray of the second dorsal fin. One to three anal spines, not separated from the rays. Soft dorsal and anal fins approximately the same length. Bases of median fins sheathed by scales. Pelvic fins attached to the abdomen by a thin mem- brane, folding into a narrow groov
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Stromateoid Fishes • HaedricJi I I. Figure 25. Branchial region of Nomeus gronovii, drawing of a cleared-and-stained preparation from a 187-mm specimen, MCZ 35327. Elements identified in Figure 2. groove, the longest spine at least as long as the longest ray of the second dorsal fin. One to three anal spines, not separated from the rays. Soft dorsal and anal fins approximately the same length. Bases of median fins sheathed by scales. Pelvic fins attached to the abdomen by a thin mem- brane, folding into a narrow groove, the fins greatly produced and expanded in young Nomeus and some Psenes. Scales small to very large, cycloid or with ver\' small weak cteni, thin, extremely deciduous. Lateral line high, following dorsal profile and often not extending onto peduncle. Skin thin; subdermal mucous canal system well developed and visible in most; the main canal down the side of the body may be mistaken for a lateral line. Opercular and preopercular margins entire or finely denticulate. Opercle very thin, with two flat, weak spines. Six branchiostegal rays. Mouth small, maxillary rarely extending to below eye. Teeth small, conical, or cusped in some Psenes, approximately uniserial in the jaws, present on vomer, palatines, and basibranchials. Supramaxillary absent. Adi- pose tissue around eye only moderately developed in most. Vertebrae 30 to 38, 41, or 42. Caudal skeleton with four hypurals and three epurals. Pharyngeal sacs with papil- lae in upper and lower sections, papillae in five to seven broad longitudinal bands. Bases of the papillae stellate, teeth seated on top of a central stalk. Adults usually about a foot long, although a giant Cubiceps may exceed three feet. Silver\' to bluish-brown, some with conspicuous striped or blotched pattern. Distribution. Nomeids are oceanic fishes of tropical and subtropical waters. They occur in the Gulf of Mexico, the Caribbean Sea, the Atlantic Ocean,
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