126 BULLETIN 103, UNITED STATES NATIONAL MUSEUM. 



Station 6019g. Panama Canal Zone. Las Cascadas section, Gail- 

 lard Cut. Fifth or topmost limestone. Emperador limestone. Oli- 

 gocene series. Collectors, D. F. MacDonald and T. W. Vaughan; 

 1911. Macrobrachium, species. Callianassa tenuis Rathbun. Mur- 

 sm macdonaldi Rathbun. Parthenope panamensis Rathbun. 



Station 6003. Panama Canal Zone. Gatun section A, bed A (bot- 

 tom, of section). Gatun formation (lower part). Miocene series. 

 Collector, D. F. MacDonald. Callianmxa crassa Rathbun. 



Station 6029a. Panama Canal Zone. One-fourth to one-half mile 

 beyond Camp Cotton toward Monte Lirio. From lowest horizon in 

 big cut. Gatun formation (lower part). Miocene series. Col- 

 lectors, D. F. MacDonald and T. W. Vaughan; 1911. Galluinassa 

 vaughani Rathbun. 



Station G033b. Panama Canal Zone. Gatun section. Upper part 

 of lowest bed. Gatun formation. Miocene series. Collectors, D. F. 

 MacDonald and T. W. Vaughan; 1911. Lepas injudicata Pilsbry. 

 ! Gatunia proavita Rathbun. 



Station 6030. Panama Canal Zone. One and one-half to 2 miles 

 beyond Camp Cotton toward Monte Lirio. From 85-foot cut on 

 north side of big swamp on relocated line, P. R. R. Gatun formation. 

 Miocene series. Collectors, D. F. MacDonald and T. W. Vaughan: 

 1911. Balanus concavus rariseptatus Pilsbry. Callianassa vaughani 

 Rathbun Gatunia proamta Rathbun. 



Station 5900. Panama Canal Zone. Gatun Locks. Gatun forma- 

 tion. Miocene series. Collector, D. F. MacDonald; May, 1911: 

 Gatunia proavita Rathbun. 



Catalogue No. 113706, U.S.N.M. Panama Canal Zone. Near Ga- 

 tun. Gatun f ormation ( ? ) . Miocene series. Labeled "Miocene.-' 

 Collector, Rev. J. Rowell. Gatunia proavita Rathbun. 



Station 5659. Panama Canal Zone. Near Gatun Dam. Gatun 

 formation. Miocene series. Collector, one of the workmen ; shipped 

 by D. F. MacDonald; 1911. Gatunia proavita Rathbun. 



Catalogue No. 135218, U.S.N.M. Panama Canal Zone. Gatun 

 beds. Gatun formation. Miocene series. Collector, R. T. Hill. 

 Callianassa Jiilli Rathbun. 



Catalogue No. 135219, U.S.N.M. Panama Canal Zone. Gatun 

 beds. Gatun formation. Miocene series. Collector, R. T. Hill. 

 Mursilia ecristata Rathbun. 



Station 5882k. Costa Ricn. Banana River: tenth fossiliferous 

 zone below the uppermost one of the section. Probably equivalent 

 to Gatun formation. Miocene series. Collector, D. F. MacDonald; 

 1911. Euphylax fortis Rathbun. 



Station 5882 j. Costa Rica. Banana River; ninth fossiliferous 

 zone below the uppermost one of the section. Probably equivalent to 

 Gatun formation. Miocene series. Collector, D. F. MacDonald; 

 1911. Euphylax callinectias Rathbun. 



