No.1205. sv\orsi$ or rin: .V.I/.I/>/:.S-N/.I//'-SV>.Y. 557 



tLAMPSILIS KIRKLANDIANUS S. H. Wright. 1 



~ f'nio kirlilandianu* S. II. WRIGHT, Nautilus, X, 1897, j>. 136. 



* Lampsilis kirklandianns SIMPSON, Pr. Ac. N. Sci. Phila., 1900, p. 76, pi. i, fig. 7. 



Ocklocknee river, Leou County, Florida. 



(Group of Lampsilix ellipsiformis.) 



Shell elliptical, subiuflated, pointed behind, that of the female but 

 slightly swollen at the post base; behind this inflation there is a slight 

 sinus; beak sculpture doubly looped, the hinder loop sometimes open 

 behind; epidermis dull, rayed with wavy lines, generally arranged in 

 bands; nacre white. 



Animal with the marsupium colored below; gills large, inner wholly 

 united to or only free from the abdominal sack a short distance. 



tLAMPSILIS ELLIPSIFORMIS Conrad. 



* Unio ellipsiformits CONRAD, Monog., VIII, 1836, p. 60, pi. xxxiv, fig. 1. *B. H. 



WRIGHT, Check List, 1888. 



* Unio spatulatus LKA, Pr. Am. Phil. Soc., IV, 1845, p. 164; *Tr. Am. Phil. Soc., 



X, 1848, p. 80, pi. vin, fig. 22; * Obs., IV, 1848, p. 54, pi. vm, fig. 22; Pr. Ac. 

 N. Sci. Phila., VI, 1853, p. 257.* H. and A. ADAMS, Gen. Rec. Moll., II, 1857, 

 p. 495.* KUSTER, Conch. Cab. Unio, 1861, p. 261, pi. LXXXVII, fig. 7. 

 * CALKINS. Pr. Ottawa, Ac. Sci., 1874, p. 45. * B. H. WRIGHT, Check List, 

 1888.* P/ETEL Conch. Sain., Ill, 1890, p. 168. 



* Margaron ( Unio) spatulalus LKA. 



* Lampsilis spatnlatus BAKER, Moll. Chicago, Pt. 1, 1898, p. 106, pi. x, fig. 5; xni, 



fig. 2. 



Upper Mississippi Valley generally; south to about latitude 38; 

 western ISTew York; southern Michigan; southern Canada; Red River 

 of the North. 



tLAMPSILIS PLEASII Marsh. 



* Unio pleasii MARSH, the Observer (a newspaper), II, May, 1891; Nautilus, V, 



1891, p. 2. 



Little Red River, Arkansas; Morrisville, Polk County, Missouri. 



tLAMPSILIS ARKANSASENSIS Lea. 



*Unio arkansasensis LEA, Pr. Ac. N. Sci. Phila., VI, 1862, p. 169; Ml. Ac. N. Sci. 

 Phila., V, 1862, p. 206, pi. xxx, fig. 275; *Obs., IX, 1863, p. 28, pi. xxx, fig. 275. 

 *B. H. WRIGHT, Check List, 1888. 



Hot Springs, Arkansas; Saline River near Bentou, Arkansas. (Call.) 



tLAMPSILIS OZARKENSIS Call. 



*Unio ozarkensis CALL, Pr. U. S. Nat. Mus., X, 1887, p. 498, pi. xxvu. *B. H. 

 WRIGHT, Check List, 1888. *CALL, Tr. Ac. Sci., St. Louis, VII, 1895, p. 33, pi. 

 xvui. 



Jack's Ford of Current River, Missouri; White River, Arkansas. 



1 A lovely, brilliant little species, nearly allied to gubangulatus, but probably 

 distinct. 



