. Maryland geological survey . Fig. 10.—Portions of the surface of Membranipora parvula. X 22. zocecia. The walls also are relatively thicker while the longitudinalarrangement of the zocecia is more pronounced. Measuring longitudinally,8 zocecia occur in 3 mm. and transversely 12 may be counted in thesame space. Occurrence.—Talbot Formation. Wailes Bluff near Cornfield Har-bor, St. Marys County. The specimen figured is unusual in that the opesium is more con-tracted than in typical specimens. Originally described from theMiocene deposits of Maryland. Collections.—Maryland Geological Survey. MA
. Maryland geological survey . Fig. 10.—Portions of the surface of Membranipora parvula. X 22. zocecia. The walls also are relatively thicker while the longitudinalarrangement of the zocecia is more pronounced. Measuring longitudinally,8 zocecia occur in 3 mm. and transversely 12 may be counted in thesame space. Occurrence.—Talbot Formation. Wailes Bluff near Cornfield Har-bor, St. Marys County. The specimen figured is unusual in that the opesium is more con-tracted than in typical specimens. Originally described from theMiocene deposits of Maryland. Collections.—Maryland Geological Survey. MARYLAND GEOLOGICAL SURVEY 213 PORIFERA. subclass HADROMERINA. Suborder CLIONIDAE. Genus CLIONA Grant. Cliona sulphurea (Desor) Verrill. Plate LXVI, Figs. 1-6. Spongia sulphurea Desor, 1848, Proc. Boston Soc. Nat. Hist, vol. iii, p. sulphurea Verrill, 1873, Invert. Animals Vineyard Sound, Rept. Com. Fish and Fisheries, pp. 421, sulphurea Verrill,
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectpaleont, bookyear1901
