GIA. GRA.] 



MOLLUSCOIDA. 



307 



FIG. 480. Glauconom* 

 nereidis. 



GLAUCONOME, Goldfuss, 1826, Germ. Petref., 

 vol. 1, p. 100, as emended by Lonsdale 

 in Murch. Sil. Syst., p. 677. [Ety. 

 mythological name.] Narrow central 

 stem, with lateral branches ; two rows 

 of cells separated by a keel on the face 

 of each branch, and opposite side stri- 

 ated. Type G. disticha. 



bellula, Ulrich, 

 (Pinnato p o - 

 ra bellula,) 

 Geo. Sur. 



E^.VIri*g5i in., vol. 8, 

 nH'JtSi^^ pi- 66 > L- 

 &yKS3P Coal Meas. 



carinata, Hall, 

 1884, Rep. 

 St. Geol., p. 

 60, Ham. Gr. 

 curvata, Ul- 

 rich, 1888, 

 ( Pinnatop o - 

 ra curvata,) 

 Bull. Deni- 

 son Univ., 

 p. 76, Cuya- 

 hoga Shales, 

 flexuosa, Ulrich, (in press), Geo. Sur. 111., 



vol. 8, pi. 66, Keokuk Gr. 

 intermedia, Ulrich, 1888, (Pinnatopora in- 

 termedia,) Bull. Denison Univ., p. 74, 

 Cuyahoga Shales. 



minor, Ulrich, 1888, (Pinnatopora minor,) 

 Bull. Denison Univ., p. 77, Cuyahoga 

 Shales. 



nereidis, White, 1874, Rep. Invert. Foss., 

 p. 18, and Geo. Sur. W. 100th Mer., 

 vol. 4, p. 105, Carboniferous, 

 nodata, Hall, 1881, Bryozoans of the Up. 

 Held. Gr., p. 18, and Pal. N. Y., vol. 6, 

 p. 102, Up. Held Gr. 



simulatrix, Ulrich, 1888, (Pinnatopora 

 simulatrix,) Bull. Denison Univ., p. 75, 

 Cuyahoga Shales. 



sinuosa, Hall, 1881, Bryozoans of the Up. 

 Held. Gr., p. 18, and Pal. N. Y., vol. 6, 

 p. 101, Up. Held. Gr. 

 subangulata, Ulrich, 1888, (Pinnatopora 

 subangulata,) Bull. Denison Univ., p. 

 76, Cuyahoga Shales. 



tenuiramosa, Ulrich, 1888, (Pinnatopora 

 tenuiramosa,) Bull. Denison Univ., p. 

 79, Cuyahoga Shales. 



tenuistriata, Hall, 1881, Bryozoans of the 

 Up. Held. Gr., p. 19, and Pal. N. Y., 

 vol. 6, p. 102, Up. Held. Gr. 

 trilineata, Meek, 1872, Pal. E. Neb., p. 



157, Coal Meas. 

 vinii, Ulrich, 1888, (Pinnatopora vinii,) 



Bull. Univ., p. 77, Cuyahoga Shales, 

 whitii, Foerste, 1887, (Pinnatopora whitii,) 



Bull. Univ., p. 78, Low. Coal Meas. 

 youngi, Ulrich, 1888, (Pinnatopora 

 youngi,) Bull. Univ., p. 78, Cuyahoga 

 Shales. 



GLOSSOTRYPA, Hall, 1887, Pal. N. Y., vol. 6, 

 p. xvii. [Ety. glosse, the tongue ; trupa, 

 opening.] Zoarium tubular ; cells aris- 

 ing from the epitheca lining the cylin- 



drical frond , intersected by narrow pro- 



jections from the cell walls, extending 



partially across the cell tube ; apertures 



paliform ; intercellular structure vesic- 



ulose. Type G. paliformis. 



paliformis, Hall, 1881, (Lichenalia pali- 



formis,) Trans. Alb. Inst., vol. 10, p. 11, 



and Pal. N. Y., vol. 6, p. 85, Up. Held. Gr. 



Glyptotrypa, Ulrich, syn. (?) for Coscinium. 



GONIOTKYPA, 



Ulrich, 

 (in press), 

 Micropal - 

 seonto 1 o - 



gy, p- 14. 



[Ety. go- 

 nia, an- 

 gle ; trupa, 

 opening. ] 

 Bifoliate, 

 joi n t e d , 



segmen t s 

 small, FJG. 

 each face alls - 



. Goniotrypa bilater- 

 1> Transverse section ; 2, 

 transverse section lower down ; 

 * 3, tangential section of the up- 



central per part. 



ridge; 



cells in longitudinal rows ; apertures 



oval, directed obliquely outward. Type 



G. bilateralis. Syn. (?) for Dicrano- 



pora. 

 bilateralis, Ulrich, (in press), Micropa- 



laeontology, p. 15, Hud. Riv. Gr. (?) 

 Gorgonia, Linnaeus, 1745, Amaenitates Acad. 



[Ety. mythological name.] Not Amer- 



ican Palaeozoic. 

 anticorum, Castelnau, 1843, Syst. Sil., p. 50. 



Not recognized. 



(?) aspera, see Subretepora aspera. 

 dubia, Goldfuss, 1826, Petref. Germ. Per- 



mian. Not recognized. 

 ehrenbergi, see Phyllopora ehrenbergi. 

 infundibuliformis, Eaton, 1832, Geo. Text 



Book, p. 43. Not recognized. 

 perantiqua, see Enallopora perantiqua. 

 retiformis, see Dictyonema retiforme. 

 siluriana, Castelnau, 1843, Syst. Sil., p, 



50. Not recognized. 



FIG. 482. Graptodictya nitida. Natural size 

 and magnified. 



GRAPTODICTYA, Ulrich, 1882, Jour. Cin. Soc. 

 Nat. Hist., vol. 5, p. 165. [Ety. grapho, 

 I write ; dictyon, net.] Zoarium pointed 

 below, branching above, cell apertures 

 circular, and separated by interstitial 

 pits or sulci ; distinguished from Ptilo- 

 dictya by the circular cells and sur- 

 rounding pits. Type G. perelegans. 



