THE HEDERELLOIDEA BASSLER 63 



REPTARIA GASPfiENSIS. new species 



Plate 16, Figure 1 



The type specimen of this species, which incrusts a brachiopod, 

 shows that the zooecia are as wide as but much shorter and more 

 nodose than in R. stolonifera, and the branches subdivide at closer 

 intervals at an angle of 45°. Zooecia 1.5 mm. long, 0.5 mm. wide, 

 with 6 to 7 zooecia in 5 mm.; budding at angle of about 30°. The 

 branches are 2 mm. wide and divide at intervals of 6 mm. 



Occurrence. — Devonian (Gasp^ sandstone): Gasp6, Quebec. 



Holotype.—U.S.'NM. No. 94576. 



REPTARIA CAYUGA, new species 



Plate 16, Figure 2 



Hederella sp. Monahan, Amer. Midi. Nat., vol. 12, No. 10, p. 389, pi. 3, fig. 3, 

 1931. 



The type specimen of this new species, in the collection of the 

 Buffalo Society of Natural History, consists of a natural mold or 

 excavation in a cephalopod shell {Mitroceras) representing a species of 

 Reptaria that differs from the genotype in the smaller dimensions of 

 the zooecia, in their less regular arrangement, the lesser width of the 

 branch, and the greater separation of the zooecia. The zooecia average 

 2 mm. in length, width 0.3 mm. bud at an angle of about 30°, and 6 

 occur in 5 mm.; the branches subdivide rather frequently at an 

 angle of 45°, and average 2 mm. in width. This species, collected by 

 the late Joseph W. Monahan, is interesting in being geologically the 

 earliest known of the genus. 



Occurrence. — Silurian (Cayugan-Bertie limestone): Quarries at 

 Buffalo, N. Y. 



Plastoholotype.—V.S.lSi.M. No. 87897. 



REPTARIA CLOUDI, new species 



Plate 16, Figure 3 



Compared with the genotype, this species is at once separated by its 

 smaller dimensions both in the size of the tubes (average length 2 

 mm. and 0.3 mm. in width, with 4 in 5 mm.) and branches. The 

 zoarium of the type specimen incrusts a cephalopod and consists of 

 branches slightly less than 2 mm. in diameter, dividing rather regu- 

 larly at an angle of about 70° at intervals of 7 mm. or more. Although 

 approaching R. cayuga in general dimensions, the rectangular method 

 of branching and the more closely and regularly arranged zooecia, 

 separate the present form. The specific name is in recognition of the 

 work of Preston Cloud on the faunas of the Middle Devonian of 

 North America. 



