Sere LON. By. 
CRUSTACEA (BALANID 2%) OF THE MIOCENE MARLS OF NEW JERSEY. 
Class CRUSTACEA. 
Order CIRRIPEDIA. 
Family BALANID2. 
Genus BALANUS. 
BALANUS PROTEUS. 
Plate xxtIv, figs. 18-25. 
Balanus proteus Conrad: Jour. Acad. Nat. Sci. Phila., ser. 1, vol. 7, p. 134; Miocene 
Foss., p. 77, Pl. xxiv, fig. 1; Meek, Check List Miocene Foss., p. 23. 
“Shell subconical; with strong prominent ribs, varying from one to 
three on each valve; aperture ovate. Length, 2 inches; height, 15 inches. 
‘“‘A very common species, modified in form by whatever surface it may 
be attached to; it is either ribbed, striate, or rugose; on a plane surface it is 
smooth, with a few strong ribs.” (Conrad in Jour. Acad. Nat Sci., vol. 7.) 
“Conical, with profound irregular ribs, and fine longitudinal and strong 
transverse wrinkles; ribs unequal in length and prominence, smooth; inter- 
stitial plates narrow, longitudinally striated; aperture acutely ovate, mod- 
erate.” (Miocene Fossils.) 
No entire individual of this species has been obtained from the New 
Jersey deposits, so far as I am aware; but numerous separated plates are 
in the collection at Rutgers College. Specimens from Virginia and other 
Southern States are common and often of large size, and are found in large 
and dense masses. The form is similar to that of the common Balanus 
of our coast, being rather broadly conical, with the sides covered with 
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