rower elsewhere ; line of concrescence and inner 

 margin separated to form a fairly wide vestibule 

 anteriorly. Radial canals number about 20 ante- 

 riorly, about ten posteriorly and a few occur along 

 ventral and dorsal margins ; anteromedially, they 

 occur in pairs. Normal canals widely spaced. 



Length of holotype left valve 0.95 mm, height 

 0.50 mm, convexity of valve 0.26 mm ; length of 

 paratype immature but complete shell 0.70 mm, 

 height 0.43 mm, convexity 0.35 mm. 



Relationships. — The elongate subreniform, 

 rather than subtriangular, outline of the species 

 appears only in large shells. It is uncertain wheth- 

 er this is a dimorphic feature, characteristic of 

 females or is the mature stage of all specimens. 

 Among described species E. solitaria Triebel 

 (1940, p. 162) from the Albian of Germany is 

 close to the subtriangular forms of the present 

 species, but is smooth-surfaced. 



Occurrence. — Rare to frequent in Lower Creta- 

 ceous deposits of probable Washita (Albian) age, 

 subsurface, of northeastern North Carolina in 

 following wells: Greenville City water well, Pitt 

 County, 608 feet and below; Odom water well 

 No. T-l, Northampton County 185-190 feet; Cale- 

 donia Prison Farm water well No. T-2, Halifax 

 County 151-196 feet; Caledonia Prison Farm wa- 

 ter well No. T-4, 161-246 feet. The sample in the 

 T-4 well from 241-246 feet has other fossils that 

 suggest a Fredericksburg age. 



Genus Eucytheroides Swain and Brown, n. gen. 



Leguminocythereis? Swain, 1948. Maryland Dept. 



Geol., Mines and Water Res. Bull. 2, p. 208. 



Shell subquadrate, small and bean-shaped, 

 highest anteriorly ; dorsal margin nearly straight ; 

 anterior margin more broadly curved than pos- 

 terior margin, the latter extended below. Left 

 valve larger than right, overlapping it. Surface, 

 except smooth marginal zone, pustulose. 



Hinge line of right valve contains an anterior 

 long barlike expansion of margin athwart posi- 

 tion of greatest height, an interterminal short 

 oblique furrow, and a posterior barlike ridge also 

 formed of valve edge ; the interterminal groove 

 represents a zone lying between the two, slightly 

 en echelon, edges of the terminal bars. Inner la- 

 mellae narrow, vestibule present; radial canals 

 widely spaced. Muscle scar an anteromedian ver- 

 tical row of four spots and other more anterior 

 spots. 



Type species, Leguminocythereis? pustulosa 



Swain. Geologic range, upper part of Lower Cre- 

 taceous, Albian Stage. 



Relationships. — The general form and hinge- 

 ment are close to Eucythere Brady, but the new 

 genus is more quadrate in outline and has mark- 

 edly pustulose surface ornamentation as com- 

 pared to the smooth or pitted surface of Eucyth- 

 ere. 



Eucytheroides pustulosa (Swain) 



Plate 3, Figure 2; Text Figure 8a 



Leguminocijthereis? pustulosa Swain, 1948, Mary- 

 land Dept. Geol., Mines and Water Res. Bull. 2, 

 p. 208, pi. 14, fig. 11. 



Howe and Laurencich, 1958, Introd. Study Cre- 

 taceous Ostracoda, p. 378, text fig. 

 The shell characteristics of this species were 

 given in the original description. The hinge of the 

 right valve is described above. The single speci- 

 men from North Carolina appears identical to 

 that from the subsurface of Maryland. 



Length of figured right valve 0.58 mm, height 

 0.30 mm, convexity of valve 0.15 mm. 



Occurrence. — Lower Cretaceous, probably of 

 Washita (Albian) age, Odom water well T-l, 

 Northampton County, North Carolina, 185-190 

 feet. The species was originally described from 

 the Ohio's Hammond No. 1 well, Wicomico Coun- 

 ty, Maryland in core sample from depths of 1,588- 

 1,598 feet in what was at that time suggested to 

 be the Raritan Formation (Anderson and others, 

 1948, p. 16), but which is probably Lower Cre- 

 taceous. 



Family Brachycytheridae Puri, 1954 



Genus Brachycythere Alexander, 1933 



Brachycythere nausiformis Swain 



Plate 3, Figures 3a-c 



Brachycythere yiausiformis Swain, 1952, U. S. 



Geol. Survey Prof. Paper 234-B, p. 80, pi. 8, 



figs. 44-47. 



Brown, 1957, North Carolina Dept. Cons, and 

 Devel. Bull. 70, p. 12, pi. 4, figs. 3, 4. 



Howe and Laurencich, 1958, Introd. Study Cre- 

 taceous Ostracoda, p. 88, text fig. 



The external characteristics and musculature 

 of the species were described previously (Swain, 

 1952, p. 80) ; the hingement has not been observed 

 clearly, because of lack of separated valves. The 

 present specimens from Alabama have the pyri- 



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