SYNOPSISRedescriptions are given of most of the genera contained in Woodward's (1901) families Enchodontidae, Dercetidae and Scopelidae. Four new suborders are erected within the order Salmoniformes, the Ichthyotringoidei, Cimolichthyoidei, Enchodontoidei and Halecoidei. The Ichthyotringoidei contains two families, the Ichthyotringidae and the new family Apateopholidae. The Cimolichthyoidei contains the Dercetidae and the new family Cimolichthyidae, with a third new family appended, the Prionolepididae. The Enchodontoidei is composed of two families, Enchodontidae and the new family Eurypholidae. The Halecoidei contains the single family Halecidae. A new family Sardinioididae is added to the Myctophiformes and a new genus, Patter sonichthys , is included within the ctenothrissiform family Aulolepidae. Each group is discussed in relation to its systematic position and the information gained is used in an overall consideration of the evolution of the teleosts in the Cretaceous. I. Genus CIMOLICHTHYS Leidy, 1857 Diagnosis (emended). Cimolichthyidae in which the head is somewhat elongated with an acutely pointed anterior region. Palatine with two longitudinal rows of teeth, only innermost row barbed. Ectopterygoid teeth also barbed. Dentary with 3 distinct rows of teeth. Dorsal fin short, mid-way along the back, consisting of 16 rays. Anal fin shorter with 11 rays and remote in position. Type species. Cimolichthys levesiensis Leidy. Remarks. The genus was originally erected by Leidy (1857) when he proposed the type species Cimolichthys levesiensis, based on palatine and ectopterygoid material showing the characteristic barbed teeth. Cimolichthys levesiensis Leidy (Text-figs. 16-21)

No abstract

A series of edited volumes comprising multifaceted studies of contemporary scientific issues by some of the best scientific minds in the world, assembled in cooperation with NATO Scientific Affairs Division. Series A: Life Sciences Recent Volumes in this Series Volume 6 -Metabolic Compartmentation and Neurotransmission: Relation to Brain Structure and Function edited by SolI Bed, D.

A series of edited volumes comprising multifaceted studies of contemporary scientific issues by some of the best scientific minds in the world, assembled in cooperation with NATO Scientific Affairs Division. Series A: Life Sciences Recent Volumes in this Series Volume 6 -Metabolic Compartmentation and Neurotransmission: Relation to Brain Structure and Function edited by SolI Bed, D.

A series of edited volumes comprising multifaceted studies of contemporary scientific issues by some of the best scientific minds in the world, assembled in cooperation with NATO Scientific Affairs Division. Series A: Life Sciences Recent Volumes in this Series Volume 6 -Metabolic Compartmentation and Neurotransmission: Relation to Brain Structure and Function edited by SolI Bed, D.