542 Systematic Paleoxtology — UrrER Devonian 



Family AULOPORIDAE 



Genus AULOPORA Goldfuss 



Aulopora repens Knorr & Walch 



Plate XLV, Figs. 10, 11 



Melliporites repens Knorr et Walch, 1775, Rec. des mon. catastr. t. iii, 



p. 157, sup. pi. vi, fig. 1. 

 Aulopora serpens Goldfuss, 1829, Petref. Germ., vol. i, p. 82, pi. xxix, fig. 1. 

 Aulopora repens Milne-Edwards and Haime, 1857, Polyp. Foss. des Terr. 



Pal., p. 312. 

 Aulopora serpens Rominger, 1876, Geol. Surv. Mich., vol. iii, p. 87, pi. xxxiii, 



fig. 2. 

 Aulopora serpens Cleland, 1911, Bull, xxi, Wisconsin Geol. Surv., p. 34, pi. ii, 



fig. 4. 



Description. — Corallum tabular, prostrate; branching from buds which 

 originate below calyx ; dichotomoiis, or branches anastomosing to produce 

 a loose meshwork. Branches funnel-shaped, attached throughout their 

 length to other organisms, especially to brachiopods. Calyx funnel- 

 shaped, directed upwards. Tabulae and septa absent. 



Diameter of branches at calyx 2 mm.; at base 1 mm.; length of 

 branches 3-5 mm. 



This appears to be the same species as one which occurs in the Hamil- 

 ton formation of New York and which has usually been described as 

 Aulopora serpens Goldfuss. Its identity with the European species, how- 

 ever, is open to question. 



Occurrence. — Jennings Formation, Parkhead Member. 2i/> miles 

 southeast of Cumberland. 



Collection. — Maryland Geological Survey. 



Genus CLADOCHONUS McCoy 



Cladochonds humilis n. sp. 



Plate XLVI, Figs. 1, 2 



Description. — Corallum tubular, prostrate, branching dichotomously. 

 Branches ascending, funnel-shaped, gradually increasing in diameter 

 from origin to caly.x. Interior of tube set with delicate spinules which 

 are arranged in lines in some parts, in others irregularly disposed. 

 Tabulae and septa none. Exterior sliowing delicate transverse strifie. 



