138 UNITED STATES NATIONAL MUSEUM BULLETIN 296 



Genus Brachyzapfes Codez, 1957, page 706 



Diagnosis: Fossil aero thoracic an burrows of elliptical section not 

 very deep, short and broad, the depth reaches about half the length. 

 The length of the burrow is about five-fourths the length of the 

 aperture. 



Type-species: Brachyzapjes elliptica Codez, 1957, page 707. 



Brachyzapfes elliptica Codez, 1957, page 707 



Zapfella pattei Saint-Seine, (1954), page 447, in part. 

 Brachyzapfes elliptica var. gigantea Taylor, 1965, page 39. 

 Nygmites sacculus Magdefrau, 1937. Seilacher, 1968, page 280. 



Diagnosis: That of the genus. Aperture 0.9-1.8 mm long, and 

 0.3-0.5 mm wide; the burrow length and width at maximum level is 

 1.1-2.0 and 0.4-0.9 mm, respectively; the apertures are more regularly 

 comma shaped than with Simonizapfes. 



Distribution: This species is very abundant in belemnites, much 

 less in lamellibranchs. Known from the N^ocomian to the Albian in 

 France, and as B. elliptica var. gigantea Taylor from belemnites of 

 Alexander Island, Antarctica. 



Type-material: Holotype: Colony in specimen of Duvalia dilantata 

 Blainv. from the N^ocomien d'Escragnolles (Maritime Alps). Coll. 

 Inst. G6ol. Poitiers, 164. 



Genus Nygmites Magdefrau, 1937, page 56 



Diagnosis: Fossil acrothoracican cirripeds with cavity apertures 

 comma shaped, in the sheUs of mollusks, corals, and rocks. 

 Type-species: Nygmites sacculus Magdefrau, 1937, page 57. 



Nymites sacculus Magdefrau, 1937, page 57 



Zapfella pattei Saint-Seine, 1954, page 447. 



Diagnosis: That of the genus. Aperture length 1.5-2.5 mm; width 

 0.3-0.6 mm; maximum burrow length 2.2-3.6 mm; burrow width 

 1.0-1.8 mm. 



Distribution: Found by Magdefrau in Belemnites hastatus Mtf. 

 from the Malm y of Wurtemberg, Germany. Saint-Seine describes it 

 as abundant in gastropods and pelecypods, and in two Belemnites 

 hastatus, through the Miocene and is rare in the Pliocene, of France, 

 Algeria, Vienna Basin, and Korytnica, Poland (Radwanski, 1964, 

 page 61). 



