410 bulletin: museum of comparative zoology. 



Limia (Limattila) suteri Dall, n. sp. 



Shell of about the size and form of L. subauriculata, with fine conceutric incre- 

 meutal Hues and feeble radial riblets, discrepaut ou the two valves, slightly 

 deflected backward distally ; both valves with a well-defiued median sulcus, which 

 ou the interior of the valve is bordered ou each side by a single distinct rib ; right 

 valve externally has one rib in front of the sulcus and seven to nine behind it ; 

 left valve with seven or eight ribs ou each side of the sulcus ; the ends of the ribs 

 serrate the ventral margin ; beaks small, prominent ; hinge line subequally 

 divided, the auricular angles prominent; the ampliidetic area narrow; the resili- 

 ary pit wide and short ; color white or pale brownish. Length, 7.1 ; breadth, 4.5 ; 

 diameter, 3.5 mm. 



Stewart Island, New Zealand, in 18 fathoms, H. Suter. U. S. N. Mus. 

 195,290. 



These little shells were sent to the Museum some time since by Mr. Suter, in 

 whose honor they are named, and in working out the " Albatross " species were 

 determined to be new. 



Mytilacea. 



Mytilidae. 



CRENELLA Brown. 



Crenella divaricata Ohbiont. 



Nuculocardia divaricata Orbigny, Moll. Cubana, 1847, 2, p. 311, pi. 27, figs. 56-69. 

 Crenella divaricata Dall, Trans. Wagner Inst. Sci., 1898, 3, p. 803. 



On the Atlantic Coast this shell ranges from North Carolina to Barbados, and 

 in time from the Oligocene of Santo Domingo to the recent fauna. Ou the 

 Pacific it has been dredged by the " Albatross " in the Gulf of California and in 

 Panama Bay, at station 2799, in 30 fathoms, and station 2805, in 51 fathoms, 

 muddy bottom. 



Crenella megas Dall. 



Crenella megas Dall, Proc. U. S. Nat. Mus., 1902, 24, p. 659 ; 1003, 26, p. 960, 

 pi. 62, fig. 4. 



Dredged by U. S. S. "Albatross," at station 2795, Panama Bay, in 33 

 fatiioms, sand, one valve, bottom temperature 64° F. U. S. N. Mus. 96,250. 

 This is probably the largest species of the geuus. 



