TYPK SPECIMENS OF INVERTEBRATE FOSSILS. 185 



46139. Ctenodonta nasuta ( Hall j. Plesiotvpe. 



IMack River (Ord.). vSix miles south of Cannon Falls, 

 Minnesota. 



Ilricli, (ieol. and Nat. Hist. Surv. Minn., I'inal Rf])l., Ill, I'l. II, 

 1S94, ]). 584, 1)1. 42, fiK. 3'>- 



46140. Ctenodonta nasuta robusta I'lrich. Holot>])e. 



J51ack River (Ord.). Paquette Rapids, Ottawa River, 

 Canada. 



ririch, Geol. and Xal. Hist. .Surv. I\Iinn., I'lnal Rc'])t., Ill, I'l. II, 

 1S94, p. 585. 



See Tellinoin\a nasuta. 



46141. Ctenodonta nitida ( Ulrich ). Cotyjies. 



Black River (Ord. ). Minneapolis, Minnesota. 



riricli, Ceol. and Nat. Hi.st. Surv. Minn., I'inal Rtpl., Ill, I'l. 11, 

 '•'^94- P- 592, pi. 42, figs. 44-49- 



See Tellinonij'a nitida. 



46142. Ctenodonta obliqua (Hall ). Ple.siotypes. 



46143. Richmond ( Ord.). Scales Mound, Illinois. 

 Lorraine (Ord.). Cincinnati, Ohio. 



Ulrich, Geol. and Nat. Hist. vSurv. IMinii., l-'inal Ript., Ill, I'l. II, 

 1S94, p. 6t)4, 1)1. 42, fig.s. 83-87. 



46144. Ctenodonta oviformis Ulrich. Holoty]ie. 



Trenton (Ord.). Near Cannon Falls, Minnesota. 



IHrich, (tcoI. and Nat. Hi.st. Surv. Minn., iMual Kept., Ill, I'l. II, 

 ''^94. V- 5^(^' pl- 42, fig. 29. 



46145. Ctenodonta perminuta Ulrich. Cotypes. 



Utica(Ord. ). Cincinnati, Ohio. 



Ulrich, Geol. vSurv. Oliio, \'II, 1893, p. 680, pl. 46, figs. 11-14. 



46146. Ctenodonta planodorsata (Ulrich). Holotype and 



l)lesiotypes. 

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



Ulrich, Geol. and Nat. Hist. Surv. :\Iinii., I'inal Rept., HI, I'l. II, 

 1894, p. 589, pl. 37, figs. 25-28; pl. 42, figs. 38-40. 



vSee Tellinomya planodorsata. 



46147. Ctenodonta recurva (Ulrich). Cotypes. 



Richmond (Ord.). Near Spring Valley, Minnesota. 



Ulrich, Geol. and Nat. Hist. Surv. Minn., I'inal Rept., Ill, I'l. II, 

 1894, p. 603, pl. 42, figs. 98-101. 



See Tellinomya lecurva. 



46148. Ctenodonta regia Ulrich. Cot^^pes. 



Trenton (Ord.)- Near Burgin, Kentucky. 



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

 1894, p. 585. 



