Catalogue Recent i^y Described Moeeusca 167 



QUADRULA EBENUS (Lca). 



Is Obovaria obovalis Raf. of the Poulson collection according to \^an- 

 atta (140, p. 558). If identifiable from the original description, obovalis 

 would have precedence. 



Qu ADRUEA FRIERSONI (B. H. Wright). 



Is a Plciirobcma according to Ortmann (81, p. 30). 



OuADRULA iiEROS (Say). 



This species is the type of Megalonaias Utterback. 



Frierson (45, p. 61) has identified Barnes' Unio giganteus as this species 

 and gives it priority. 



QuADRUEA INTERMEDIA (Conrad). 



Unio tiiberosits pcrlohatiis De Gregorio, Moll, di aq. dul. di Amer., 1914, p. 

 9, Pl- I, fi?- 3- 



QuADRULA KIRTLANDIANA (Lea). 



Is a variety of 0. snbrotunda (Lea) according to Ortmann (78 p. 116). 



QuADRULA LACHRYMOSA (Lea). 



This species has been identified as the Obliquaria qiiadnda Raf. by Say, 

 Conrad and others and Vanatta (140, p. 556) states that the shell so labelled 

 in the Ponlson collection is Lea's asperriuuts. If identifiable from the orig- 

 inal description, it would have priority. 



QuADRUEA LACHRYMOSA contraryEnsis Uttcrback. 



Onadrula lachrymosa contraryensis Utterback, Amer. ^lid. Nat., IV, 191 5, 



p. 138, pl. XVIII, figs. 47a-b. 

 Type locality : Lake Contrary, St. Joseph, ]\Io. 



Peeurobema missouriensis (Marsh). 



The type of this species has been figured by Walker (155. p. 140, pl. V, 

 figs. 1-2) and it appears to be a Qiiadnda allied to Q. subrotunda (Lea). 



QuADRULA obliqua (Lam.). 



Includes pyramidata Lea, cocinea Con., and plena Lea according to Ort- 

 mann (78, p. 117 and 79, p. 264) and is a Pleurobema. Vanatta states (140, 

 P- 557) that the Obliquaria lateralis Raf. of the Poulson collection is this 

 species. 



