510 PROCEEDINGS OF THE NATIONAL MUSEUM. tol. 39. 



between the stolon and the zooecium proper. C. harheri, however, 

 with equally slender and long stolons, has an angle of 30°, which 

 is sufficient to cause the zooecium to stand out prominently. Com- 

 parisons of equally magnified views of this and related species, as 

 shown in figure 3, indicate the unusually large size of the zooecium 

 in C. barheri, although its stolon has practically the same dimen- 

 sions as the more delicate forms. The dimensions of the species are 

 as follows: An average zooecium, including the stolon, is 1 mm. long 

 and 0.23 mm. wide at its greatest diameter. The angle of diver- 

 gence, as noted before, is 30°. 



In growth, relative position and size of apertures, and height of 

 peristome, C. harheri differs in no way from other members of the 

 C. delicatula section, although, because of its large angle of diver- 

 gence, it may be regarded as approaching the C. injiata section. 

 The species often forms very luxuriant growths upon massive bryo- 

 zoans, brachiopods, and other organisms. Such zoaria, with their 

 prominent although dehcate zooecia, form striking cabinet speci- 

 mens. 



The specific name is in appreciation of the excellent collections 

 made in the vicinity of his home city by Mr. Manly D. Barber, of 

 Knoxville, Tennessee. 



Occurrence. — Common in the shales of the Holston and Ottosee 

 formations at Knoxville, Tennessee, and at many other places in 

 that state and Virginia, where the same strata outcrop. Specimens 

 indistinguishable from the types occur in the Lyckholm formation 

 at Hohenholm, Island of Dago, Baltic Sea, in rocks equivalent to the 

 Richmond group of America. 



Holotype and paratype. — Cat. nos, 57105, 57106, U.S.N.M. 



CORYNOTRYPA ELONGATA (Vine). 



Stomatopora dissimilis, var. elongata Vine, Quart. Journ. Geol. Soc. London, 



vol. 38, 1882, p. 50. 

 Stomatopora elongata Vine, Ann. and Mag. Nat. Hist., ser. 5, vol. 14, 1884, p. 



85, fig. IV, 2.— Bassler, Bull. U. S. Geol. Surv., no. 292, 1906, p. 14, pi. 4, 



figs. 10-14. 

 Stomatopora parva Ringueberg, Bull. Buffalo Soc. Nat. Hist., vol. 5, 1886, 



p. 20, pi. 2, fig. 16. 



Original description. — ^^Stomatopora dissimilis Vine, var. a. eloTi- 

 gata. Zoarium very irregular, clustering. Zooecia elongated, with, 

 at times, long stoloniferous processes which intermingle with the 

 cells. Wlien colonial growth is distinct, arrangement of cells is 

 linear and uniserial. Measured under favorable circumstances, 

 about three cells occupy the space of one line." 



The present species has been treated by me at some length in the 

 article cited above, and the following notes are mainly from that 



