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- 

 sia macdonaldi Rathbun. Pa/rthenope 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. Callianassa erassa 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. Callianassa 

 vaughani Rathbun. 



Station 6033b. — 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. 

 f 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 proavita 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 Mlli 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 Rica. 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. 



