LUCINIDAE 65 



Found in sand and muddy bottom from shallow to deep water. 

 Ling-a aniiantusss (Dall) PI. 11, fig. 67 



Alt., 6.5; length, 6 mm. Shell small, white, globose; valves not 

 thick, thin periostracum; lunula small, impressed; umbos in contact; 

 delicate reticulate sculpture; small cardinal and lateral teeth; margins 

 finely crenate. 



Inhabits mud and sand bottom from shallow to deep water. 



Subgenus ("AVILINGA Chavan. 1937 

 Liiig'a trisuloata (Conrad) PI. 45, fig. 312 



Alt., 5; length, 4.5 mm. Shell chalky white, small, moderately 

 convex, oblique, inequilateral; umbos high, approximate; surface 

 finely, concentrically grooved, with two or three deeper concentric 

 sulci, indicating resting stages; two cardinal teeth in left valve, one 

 in right; lateral teeth small but distinct; inner margin minutely 

 crenulate. 



Dredged in four to six fathoms. 



Genus ANODONTIA Link, 1807 

 Anodontia^s pectinata (Gmelin) PI. 11, fig. 64 



Alt., 55; length, 58 mm. Shell pale yellow, lenticular, thin peri- 

 ostracum; rostrate posteriorly, also a slight anterior rostration; 

 umbos small, approximate; small lunule, not evenly halved between 

 the two valves; margin rounded, smooth; sculpture of concentric, 

 lamellate ridges and delicate parallel ribbing in interspaces; sub- 

 marginal ligament; two cardinal teeth in left valve, one in right; 

 one anterior and one posterior lateral in left valve; opposite sockets 

 in right valve; interior yellow; narrow anterior and posterior muscle 

 scars; inner margins finely crenate. 



Inhabits muddy sand at no great depths. 



Anodontia alba"" Link {Loripinus chrysostoma Philippi) PI. 40, fig. 292 



Alt., 50; length, 53 mm. Shell subglobose with rounded margins; 

 exterior white, interior brilliant orange color, deepest near margins; 

 umbos not prominent; hinge margin extended anteriorly to a faint 



^'^ Gr., amiantos, unstained. 



^3 Gr., ano, without; dontes, teeth; Lat., pectinare, to comb. 



^° Lat., albus, dead white. 



