104 



BRACHIOPODA. 



Amphigenia, Hall, 1867, Pal. N. Y., vol. 4. 

 [Ety. amphi, on both sides; genea, 

 growth.] 



curta, Meek & Worthen, 1868,(Strickland- 

 inia elongata var. curta) Geo. Sur. 111., 

 vol. 3, Oriskany sandstone. [Sig. 

 short.] 



elongata, Vanuxem, 1842, (Pentamerus 

 elongata) Geo. 3rd Dist. N. Y., Scho- 

 harie grit & Up. Held. Gr. [Sig. elon- 

 gated.] 



elongata var. undulata, Hall, 1867, Pal. N. 

 Y., vol. 4, Up. Held. Gr. [Sig. waved.] 



elongata var. subtrigonalis, Hall, 1857, 

 (Meganteris subtrigonalis) 10th Reg. 

 Rep., Up. Held. Gr. [Sig. somewhat 

 triangular.] 

 Anastrophia, Hall, 1867, Pal. N. Y., vol. 4. 

 [Ety. ana, with ; strophe, a turning 

 round; the relation of the valves is 

 the reverse of that of Pentamerus.] 



interplicata, Hall, 1852, (Atrypa interpli- 

 cata) Pal. N. Y., vol. 2, Niagara Gr. 

 [Sig. from the interplications.] 



reversa, Billings, 1857, (Pentamerus re- 

 versus) Rep. of Prog. Mid. Sil. [Sig. 

 reversed; the dorsal valve being 

 largest.] 



verneuili, Hall, 1859, Pal. N. Y., vol. 3, 

 Low. Held. Gr. [Ety. proper name.] 

 Anomia, Linnseus, 1767, Syst. Nat., 12th Ed. 

 [Ety. anomios, unequal.] 



biloba, see Orthis biloba. 



pecten, see Strophomena pecten. 



reticularis, see Atrypa reticularis. 

 Anomites, Wahlenberg, 1821, Act., Upsal. 



exporrectus, see Cyrtia exporrecta. 



glaber, see Spirifera glabra. 



punctatm, see Productus punctatus. 



resupinatus, see Orthis resupinatus. 



reticularis, see Atrypa reticularis. 



rhomboidalis,- see Strophomena rhomboi- 

 dalis. 



scabriculus, see Productus scabriculus. 



semireticulatus, see Productus semireticu- 

 latus. 

 Athvris, McCoy, 1844, Carb. Foss. Ireland. 

 [Ety. a, without ; thuris, a small door ; 

 in allusion to the absence of a deltidi- 

 um or door. But the name is erro- 

 neous.] 



americana, Swallow, 1863, Trans. St. 

 Louis Acad. Sci., Low. Carb. [Ety. 

 proper name.] 



angelica, Hall, 1861, 14th Reg. Rep., Che- 

 mung Gr. [Ety. proper name.] 



.argentea, Shepard, 1838, Am. Jour. Sci., 

 Up. Coal Meas. [Sig. pertaining to 

 silver.] 



biloba, Winchell, 1865, (Spirigera biloba) 

 Proc. Acad. Nat. Sci., Kinderhook Gr. 

 [Sig. double-lobed.] 



caput-serpen tis, Swallow, 1863, Trans. St. 

 Louis Acad. Sci., Up. Coal Meas. 

 [Ety. caput, head; serpens, a, serpent.] 



charitonensis, Swallow, 1860, (Spirigera 

 charitonensis) Trans. St. Louis Acad. 

 Sci., Coal Meas. [Ety. proper name.] 



chloe, Billings, 1860, Can. Jour., vol. 5. 

 Devonian. [Ety. proper name.] 



clara, syn. for Meristella nasuta. 



clintonensis, Swallow, 1863, Trans. St. 

 Louis Acad. Sci., Low. Carb. [Ety. 

 proper name.] 



cora, Hall, 1860, 13th Reg. Rep., Ham. & 

 Chemung Gr. [Ety. mythological 

 name.] 



corpulenta, Winchell, 1863, (Spirigera 

 corpulenta) Proc. Acad. Nat. Sci., Che- 

 mung Gr. [Sig. corpulent.] 



crassicardinalis, AVhite, 1860, Bost. Jour. 

 Nat. Hist,, vol. 8, Waverly Gr. [Sig. 

 thick on the hinge.] 



eborea, Winchell, 1866, Rep. Low. Pen- 

 insula Mich., Ham. Gr. [Sig. made 

 of ivory.] 



euzona, Swallow, 1863, Trans. St. Louis 

 Acad. Sci., Low. Carb. [Sig. beauti- 

 fully girdled.] 



differentis, McChesnev, I860, New Pal. 

 Foss., Carb. [Sig. different.] 



formosa, Swallow, 1863, Trans. St. Louis 

 Acad. Sci., Low. Carb. [Sig. beauti- 

 ful.] 



fultonensis, Swallow, 1860, (Spirigera 

 fultonensis) Trans. St. Louis Acad. 

 Sci., Ham. Gr. [Ety. proper name.] 

 hannibalensis, Swallow, 1860, (Spirigera 

 hannibalensis) Trans. St. Louis Acad. 

 Sci., Chemung Gr. [Ety. proper 

 name.] 



hawni, Swallow, 1860, (Spirigera hawnii) 

 Trans. St. Louis Aca<J. Sci., Coal Meas. 

 [Ety. proper name.] 



headi, see Zygospira headi. 



headi var. anticmtiensis, see Zygospira 

 headi var. anticostiensis, 



headi var borealis, see Zygospira headi var. 

 boreal is. 



hirsuta, Hall, 1858, Trans. Alb. Inst., vol. 

 4, Warsaw Gr. [Sig. rough, prickly.] 



incrassata, Hall, 1858, Geo. Rep. Iowa, 

 Burlington Gr. [Sig. thickened.] 



jacksoni, Swallow, 1860, (Spirigera jack- 

 soni) Trans^St. Louis Acad. Sci., Coal 

 Meas. [Ety. proper name.] 



julia, see Meristella julia. 



junia, Billings, 1866, Catal. Sil. Foss. 

 Antic, Anticosti Gr. [Ety. proper 

 name.] 



lamellosa, Leveille, 1835, (Spirifer lamel- 

 losus) Mem. Geol. Soc. France, Wav- 

 erly Gr. [Sig. in very thin plates.] 



lara, Billings, 1866, Catal. Sil. Foss. Antic, 

 Anticosti Gr. [Ety. mythological 

 name.] 



maconensis, Swallow, 18 60, (Spirigera 

 maconensis) Trans. St. Louis Acad. 

 Sci., Coal Meas. [Ety. proper name.] 



maia, see Spirifera maia. 



minima, Swallow, 1860, (Spirigera min- 

 ima) Trans. St. Louis Acad. Sci., Ham. 

 Gr. [Sig. the least.] 



missouriensis, Swallow, 1860, (Spirigera 

 missouriensis) Trans. St. Louis Acad. 

 Sci., Coal Meas. [Ety. proper name.] 



