396 U.S. NATIONAL MUSEUM BULLETIN 221 



T[hryolhorus]. maciilipectus canobrunneus Ridgway 



Manual of North American birds, p. 552 (footnote 5), September 1887. 

 =^Thryothorus rutilus canobrunneus Ridgway. See Hellmayr, Catalogue 

 of birds of the Americas 7 : 202, 1934. 



106242. Adult (sex not indicated). Temax, State of Yucatan, Mexico. 

 December "1885." Collected by George F. Gaumer. Original number 8. 



106243. Adult (sex not indicated). State of Yucatan, Mexico. Entered 

 into the museum register on December 8, 1885. Collected by George 

 F. Gaumer. 



Ridgway stated that the type of this form was No. 106243, from Temax, 

 but there is, in fact, no evidence in existence that it came from Temax at 

 all. The oldest label, written in Ridgway's hand, bears only tlic data given 

 above. No. 106242, on the other hand, carries Gaumer's own label, which 

 not only gives Temax as provenience, but shows as well a collection date. 

 Since Ridgway had before him but two specimens of canobrunneus, it is 

 difficult to believe that he intended to use as type the one with less sufficient 

 data, and it seems highly probable that "106243" was a lapsus calami for 

 "106242." In the circumstances, I treat each of them as a cotype. 



Although Gaumer himself wrote the collection date of No. 106242 as 

 "December 1885," one must recognize this as an error, in consideration of 

 the fact that the specimen was already in Washington not later than Dec. 

 8, 1885. Collection dates of other skins in the same shipment run back to 

 Se]^tember 1884, so it may be assumed that No. 106242 was actually taken 

 in December 1884. 

 T[hryolhoriss]. maculipectus unibrinus Ridgway 



Manual of North American birds, p. 552 (footnote 4) , September 1887. 

 =Thryothorus rutilus uinbrinus Ridgway. See Hellmayr, Catalogue of 



birds of the Americas 7: 203, 1934. 

 10205. Adult (sex not indicated). "Guatemala." Entered into the 



museum register on Apr. 17, 1858. Received from John Gould. 

 20398. Adult (sex not indicated). Cajabon ("a small village on the river 

 of the same name . . . about forty miles northeast of Coban," fide 

 Griscom, Bull. Amer. Mus. Nat. Hist. 64:414, 1932), Department of 

 Alta Vera Paz, Guatemala. January 1860. Collected by Osbert Salvin. 

 Original number 1437. Received from Osbert Salvin. 

 42655. Adult (sex not indicated). "Central Guatemala (Coban to 

 Clusec)." Entered into the museum register on Oct. 29, 1866. Col- 

 lected by Henry Hague. 

 50439. Adult (sex not indicated). "Guatemala." Entered into the 



museum register on Mar. 4, 1868. Collected by C. H. Van Patten. 

 Although no type was designated at the original description, Ridgway at 

 some time fastened a red type label to No. 50439. Of the Guatemaltecan 

 skins in his series, it is clear that only No. 20398 is accompanied by sufficient 

 data to be justifiably made the lectolype, and, if one is to accept Griscom's 

 restriction of type locality to Vera Paz {op. cit., p. 293), No. 20398 acquires 



