vine: polyzoa of the wedlock shales. 
187 
7. Stomatopora dissimiles, Vine. PL XII. figs. 13-16. 
=Stomatopora id Vine, Quar. Jour. Geol. Soc, Nov. 1881, p. 615, 
figs. 1-8, p. 616. 
Stomatopora id Vine, Quar. Jour. Geol. Soc, Feb. 1882, p. 50. 
Habitat: on crinoid stems and broken shells. 
Locality: Buildwas beds, near base of Wenlock shale. 
8. Stomatopora dissimilis var. a. elongata. Vine. PI. XII. fig. 17, 
Quar. Jour. Geol Soc, Feb. 1882, p. 50. 
Habitat and Locality: the same. 
The variety is fully described in the above paper. 
9. Stomatopora dissimilis var. b. compressa, Quar. Jour. Geol. Soc, 
Feb. 1882, p. 51. 
Habitat : on stones, corals and brachiopoda. 
Locality: Wenlock limestone. 
Fully described in the above paper, wherein I remark that the 
variety has never been found in shales below the Wenlock limestone. 
Allied or distinct American Silurian forms. 
Stomatopora inflata. Hall, Palaeon. of New York, vol. 1 (Alecto.) 
=Hippothoa inflata, Nicholson, Ann. Mag. Nat. Hist. Feb. 1875. 
=Stomatopora inflata. Vine, Quar. Jour. Geol Soc, Nov. 1881. 
Range: Trenton Limestone (Hall) : Hudson River ; Cincin- 
nati group. 
Stomatopora auloporoides, Nich. Ann. Mag. Nat. Hist as Alecto, 
Feb. 1875. PL XI. figs. 2-26. 
Locality and Form : Cincinnati group, Cincinnati, Ohio. 
Stomatopora frondosa = Alecto frondoso, Nicholson. Ann. 
Mag. Nat. Hist., Feb. 1875. PL XI. figs. 3-3a. 
Range: Hudson River group, (Low Sil.) Cincinnati; Wanesville, 
Ohio. 
Stomatopora confusa, Nicholson. 
= Alecto id, Nich. Ann. Mag. Nat. Hist., Feb. 1878, PL XI.,fig. 4. 
Locality and Form : Cincinnati groups, Cincinnati, Ohio. 
The whole of these species are very abundant in the Cin- 
cinnati rocks of America. The forms and specimens supplied to me 
by the kindness of j\ir J. M. Nickles and also by Professor Nichol- 
son have enabled me to study in detail the remarkable group. Tlie 
