CRETACEOUS FISHES. 373 
Genus Stenostoma', new, Agassiz. 
Stenostoma pulchella, R. 4. (Tab. XXXVI. fig. 2.) 
This well-preserved little fish is from Steyning chalk-pit. It has considerable 
affinities to the genus Rhacolepis, which is found in the chalk formation near 
Barra do Jardin, Serra de Araripe, N. Brazil, especially in the small size of 
the scales: this is the only example yet discovered, and forms part of my own 
cabinet. In shape it more resembles Rhacolejus Brama than R. buccalis. 
Notes on the Order Cycloidei. 
Family ScomBerorpDet. 
Genus Enchodus?, Agassiz. 
Enchodus halocyon, R.1. Esox Lewesiensis, Mantell. (Tab. XXX. fig. 27 ; 
Tab. XXXI. fig. 11. Agassiz, vol. v. p. 64.) 
Single teeth and portions of the lower jaw of this fish are frequently discovered ; 
the teeth are very brittle; they are not so numerous as in the Pike; the two 
anterior teeth are much longer than the rest. The jaws are beautifully gra- 
nulated in longitudinal ridges; the scales are large and circular, marked with 
concentric lines ; the vertebre are longer than high. I procured a fine specimen 
of this fish from Balcombe pit, near Houghton ; it shows the scales and verte- 
bre, and measures near a foot in length. 
Tab. XXX. fig. 20. is a large specimen of the anterior tooth of an Enchodus, 
having serrated edges; this character is scarcely sufficient to warrant a second 
specific appellation. 
Family SpHyR&£NID&. 
Genus Saurodon. 
Saurodon Leanus, Agassiz, R. 2. (Tab. XXX. figs. 28 & 29; Tab. XXX1*. 
fig. 10.) 
The specimen figured is of great interest ; it shows the two lower jaws united 
at the symphysis, and a portion of the right palatine bone in its natural position. 
‘ arevos angustus, cToja Os. > éyxos gladius, ddovs dens. 
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