FAUNA OF OETHAULAX PUGNAX ZONE. 153 



Subgenus ANGTTLUS (Megerle) Ball. 



Angiitis (part) Megebi,e von Mtjhlfeldt, Mag. de*- Ges. Naturf. Freuade 



zu Berlin, vol. 5, p. 47, 1811. Tellina lanceolata Linnaeus and T. vir- 



gata Linnaeus. 

 Angulus Dall, Trans. Wagner Inst, vol, 3, pt. 5, p. 1014, 1900. Tyi^e, T. 



lanceolata Linnaeus. 

 Fabulina Gray, Brit. Moll. Brach., p. 40, 1851; Tellina fabula Gronovius. 

 Tellinula Bucquoy, Dautzenbebg, and Dollfus, Moll. Mar. de Roussillon, 



vol. 2, p. 654, 1898 ; same tyi^e. 



TELINA (ANGULUS) ATOSSA Dall. 



Plate4, fig. 11. 



Shell egg-ovate, thin, rather compressed, nearly equilateral, with 

 lovr subcentral beaks; anterior end full, rounded; posterior end 

 compressed, attenuated, almost rostrate; anterior dorsal slope mod- 

 erately convex, posterior slope straight; surface nearly smooth ex- 

 cept toward the margins where the incremental lines rise into low 

 sharp lamellae with flattish interspaces ; there is no radial sculpture, 

 and neither lunule nor escutcheon; hinge of the right valve with 

 two cardinal teeth the posterior large and bifid, an anterior larger 

 lateral, and a more distant smaller posterior lateral tooth; pallial 

 sinus large, coincident with the pallial line below, and not reaching 

 the anterior adductor scar. Length of shell 21, height 14, diameter 

 (estimated) 7 mm. 



Tampa silex beds at Ballast Point, Tampa Bay, Florida, one right 

 valve. U. S. Nat. Mus. No. 166118. 



This shell belongs to the type of A. decumhens Carpenter, a recent 

 Panama form, and is very distinct from any other. 



Genus MACOMA Leach. 



Macoina Leach, in Ross Voy., app. 2, p. Ixii, 1819 (Jf. tenera Leach) ; 



Journ. de Physique, vol. 88, p. 465, June, 1819. — Dall, Proc. U. S. Nat. 



Mus., vol. 23, No. 1012. p. 292, 1900; Trans. Wagner Inst., vol. 3, pt. 5, 



p. 1044, 1900. Type, M, ealcarea Gmelin. 

 Limicola Leach, Moll. Gt. Brit.,, p. 296, 1852 ; not of Koch, Aves, 1816. 



MACOMA IRMA Dall. 



Plate 24, fig. 9. 



Macoma inna Dall, Trans. Wagner Inst., vol. 3, pt. 5, p. 1047, pi. 46, fig. 15, 

 1900. 

 Tampa silex beds at Ballast Point, Tampa Bay, Florida. U. S. 

 Nat. Mus. No. 157906. 



The specimens, though imperfect, belong to this genus, and to a 

 species distinct from any other in the present list. 



