TYPE SPECIMENS OK INVERTEBKATE FOSSILS. 61 



45689. Archinacella instabilis incurva Ilrich and vScofield. 



Holotype. 

 Black River fOrd. 1. Goodhue County, Minnesota. 



Ulricli and vScofield, Geol. and Nat. Kist. Surv. ]\Iinn., l'"inal 

 Rept., Ill, Ft. II. 1S97, p. 835, pi. -61, figs. 21-23. 



45690, Archinacella powers! Ilrich and vScofield. ' Plastotype. 



Stone.s River (Ord.j. Beloit, Wiscon.sin. 



Ulrich and vScofield, Geol. and Nat. Hist. vSurv. Minn., Final 

 Rept., Ill, Pt. II, 1897, p. 820, fig. la; p. S29, figs. 3-5; pi. 

 61, fig. 4. 



45691. Archinacella richmondensis Ulrich. Holotype. 



Richmond (Ord. 1. Richmond, Indiana. 



Ulrich, Geol. and Nat. Hist. vSurv. Minn., Final Rept., Ill, 

 Pt. II, 1897, p. 834, pi. 61, figs. 6, 7. 



45692. Archinacella rotunda Ulrich and Scofield. Holotype. 



Richmond (Ord. ). Graf, Iowa. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final 

 Rept., Ill, Pt. II, 1897, p. 835, pi. 61, figs. 24, 25. 



43693. Archinacella rugatina Ulrich. Holotype. 



Richmond (Ord. ). Middletown, Ohio. 



Ulrich, Geol. and Nat. Hist. vSurv. Minn., Final Rept., Ill, Pt. II, 

 1S97, P- B35, pi. 82, fig.s. 5, 6. 



43694. Archinacella semicarinata Ulrich and Scofield. Holotype. 



Trenton (Ord. i. Cannon Falls, Minnesota. 



Ulrich and Scofield, Geol. and Nat. Hist. vSnrv. Minn., Final 

 Rept., Ill, Pt. II, 1897, p. 833. pi. 61, figs. 12, 13. 



45695. Archinacella simulatrix Ulrich and Scofield. Holotype. 



Black River (Ord. >. St. Paul, Minnesota. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. INIinn., I-inal 

 Rept., Ill, It. II, 1897, p. 833, pi. 61, figs. 10, II. 



45696. Archinacella subrotunda Ulrich and vScofield. Holotype. 



Black River (Ord.). Near Cannon Falls, Minnesota. 



Ulrich and Scofield, Geol. and Nat. Hist. Surv. Minn., Final 

 Rept., Ill, Pt. II, 1897, p. 834, pi. 61, figs. 26, 27. 



37970. Architarbus elongatus Scudder. Holotype. 



Upper Coal Measures. Braidwood, Illinois. 



Scudder, Mem. Boston Soc. Nat. Hist., IV, 1890, p. 449, pi. 40, 

 fig. 4; F'oss. Insects N. America, 1890, p. 425, pi. 32, fig. 4. 



= Geraphryntts (Architarbus) elongatus. 



37993. Archiulus (?) glomeratus Scudder. Cot^'pe.s. 



37994. Upper Coal Measures. Mazon Creek and Braidwood, 



Illinois. 



Scudder, Mem. Ro.ston Soc. Nat. Hist., IV, 1890, p. 436, i^l. 37, 

 figs. 2, 3; Fo.ss. In.sects N. America, I, 1890, p. 412, pi. 29, 

 figs, 2, 3. 



