TELLINIDAE 427 



Tellina iris Say Iris Tellin 



North Carolina to Florida, the Gulf of Mexico, and Bermuda. 



Yo inch in length, very similar to similis, and often as colorful, but very 

 thin-shelled, translucent and more elongate. On the interior of the valves, 

 the wavy oblique lines are evident, and there are 2 radial thickenings or 

 weak, white, internal ribs at the posterior end. Common from intertidal 

 flats to 20 fathoms. 



Tellina candeana Orbigny from the Lower Florida Keys and the West 

 Indies commonly yellowish white and is more wedge-shaped (blunter at the 

 anterior end) and, of course, has the peculiar sculpture of this subgenus. 



Subgenus Scrobiculina Dall 1900 

 Tellina magna Spengler Great Tellin 



Plate 40! 



North Carolina to southeast Florida and the West Indies. 



3 to 4/4 inches in length, half as high, quite compressed and glossy- 

 smooth. Posterior dorsal region dull, bordered by a weak, radial ridge. Left 

 valve glossy white, rarely faintly yellowish; right valve glossy orange to 

 pinkish and microscopically cut with concentric scratches. An uncommon 

 and very lovely species much sought after by collectors. Found just below 

 low tide in sand. 



Subgenus Eury tellina P. Fischer 1887 

 Tellina lineata Turton Rose Petal Tellin 



Plate 4oh 



All of Florida and the West Indies. 



1 34 inches in length, moderately elongate, slightly inflated, solid and 

 with a fairly strong twist to the right at the posterior end. Smoothish and 

 glossy, but under a lens fine, concentric, crowded grooves may be seen. 

 The outer surface has a slight opalescent sheen. Color pure-white or strongly 

 flushed with watermelon-red. Pallial sinus just touches the anterior muscle 

 scar, while in the similar but more elongate T. alternata it does not. Com- 

 mon in shallow water. 



Tellina alternata Say Alternate Tellin 



Plate 4on 



North Carolina, Florida, and the Gulf States. 



2 to 3 inches in length, elongate and compressed, solid, and with a 

 moderately pointed and slightly twisted posterior end. Sculpture of numer- 



