NO. 3550 DARTERS — COLLETTE AND KNAPP H 



breast with one enlarged scale; another enlarged scale between pelvic 

 fin bases; opercle covered with scales. 



Paralectot3rpes: USNM 31111 (3, 46-50), same data as lectotype. 



=Percina (Ericosma) crassa crassa (Jordan and Bray ton). 



Alvordius evides Jordan and Copeland in Jordan, 1877, Proc. Acad. 

 Nat. Sci. Philadelphia, vol. 29, p. 51. 



Lectotype: USNM 17872 (cf, 45), Indiana, Marion Co., White 

 R., near Indianapolis; D. S. Jordan; 1874; herein selected. D XII-13; 

 A 11,9; LL 64; INF 8; POM 10; cheeks with a smaU patch of scales 

 under junction of lateral and infraorbital canals; opercles scaly; nape 

 with scattered scales; breast naked except for one modified scale at 

 center; subocular bar present. 



Paralectotypes?: MCZ 24399 (2 cT, 42^6), same locality as 

 lectotype. We are not certain that MCZ 24399 contains the other 

 two syntypes on which the original description was based. 



The original description was based on three specimens. Jordan 

 and Copeland (in Jordan, 1877, p. 8) utilized additional specimens 

 when they described Ericosma to contain the previously described 



A. evides. These additional specunens were incorrectly labeled as 

 types: USNM 20119, MCZ 35957, and BMNH 1880.1.21.12-14. 



=Percina (Ericosma) evides (Jordan and Copeland). 



Alvordius maculatus Girard, 1859, Proc. Acad. Nat. Sci. Philadelphia, 

 vol. 11, p. 68. 

 Syntypes: USNM 1346 (2, ?), Fort Gratiot on Lake Huron; Maj. 



B. Alvord; listed as thrown away in USNM catalog and we have 

 been unable to find them. 



=Percina (Alvordius) maculata (Girard). 



Ammocrypta beanii Jordan, 1877, U.S. Nat. Mus. Bull. 10, p. 5. 



Holotype: USNM 17833 (d^, 52), Louisiana, Notalbany R., near 

 Tickfaw; T. H. Bean; December 1876. 



= Ammocrypta (Ammocrypta) beanii Jordan. 



Ammocrypta clara Jordan and Meek, 1885, Proc. U.S. Nat. Mus., 

 vol. 8, p. 8. 



Lectotype : USNM 35828 (1, 42), Iowa, Des Momes R. at Ottumwa; 

 D. S. Jordan and S. E. Meek; August 1884. Jordan and Evermann 

 (1896, p. 1063) listed USNM 35828, then containing four specunens, 

 as "type." Linder (1959) selected one specimen as lectotype and 

 removed the other three. 



Paralectotypes: USNM 164166 (3, 33-51), out of USNM 35828. 

 Lmder overlooked paralectotypes SU 1500 (1, 46) and UMMZ 

 187510 (2, disintegrated), orig. lU 753, then lU 7323, that are also 

 from the original type series. 



