236 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 45. 



Distribution and measurements of known species of Giant Limas. 



Name. 



Locality. 



Depth in 

 fathoms. 



Measurements iii mm. 



Alt. 



Lat. Diam. 



(Acesia) excavata Fabricius, 1779. 

 (Acesta) goliath Sowerbv, 1883.... 



(Acesta) indica Smith, 1899 



{Acesta) patagonica Dall, 1902 



(Acesta) agassizi Dall, 1902 , 



(Acesta) verdensis , 



(Acesta) relebensis 



(Acesta) butonensis 



( Callolima) smithi 



( Callolima) ralhbuni , 



( Callolima) philippinensis , 



( Callolima) borneensis 



Norway 



.Japan 



Arabian Sea 



Patagonia 



Panama 



Philippines 



Buton Strait 



do 



Philippines 



do 



do 



Borneo 



1.50-300 



775 



430 



245-481 



322 



394 



519 



559 



281-508 



161-220 



190 



305 



170 

 1.50 



75 

 100 



97 



48 

 159 



2G. 8 

 175 

 208 

 177 



39.2 



125 

 110 



01 



72 



78 



40.4 



(?) 



22 

 118 

 156 

 111 



33 



55 

 36 

 34 

 31 

 30 

 21.5 

 (?) 

 11 

 48 

 59 

 37 

 16 



The photographs of the accompanying illustration were made by 

 the Photographer of the United States National Museum, and were 

 retouched by Mrs. E. Bennett Decker. 



LIMA (CALLOLIMA) SMITHI, new species. 

 Plates 12 and 13. 



Shell large, slightly gaping for the greater part of both the anterior 

 and posterior lateral margin. Pale lemon yellow, which is more 

 intensified at the border than at the center of the disk, and also appears 

 more emphasized on a series of rings which probably mark resting 

 stages. Outline very oblique; the anterior lateral margin being 

 much less curved than the posterior, which is very strongly arched. 

 Hinge slightly curved, with a general upward slant posteriorly; 

 scarcely produced beyond the beaks anteriorly. Lunule slight, outer 

 surface marked with strongly impressed, quite regular and fairly 

 evenly distributed somewhat zig-zag radiating lines which are less 

 expressed on the early part of the shell and are almost obsolete on a 

 narrow line radiating from the beak ventrally. The radiating lines 

 are strongest on the lunule. Interior bluish white with the intensified 

 yellow portion shining through the substance of the shell. Resilium 

 large, with the posterior margin evenly curved and the ventral 

 sigmoid. *• 



The type, Cat. No. 256977, U.S.N .M., was dredged at station 5533, 

 off Baliscasag Island, in 432 fathoms, on green mud and sand bottom, 

 bottom temperature 53°.3. The type, which is the largest specimen, 

 measures: alt. 175 mm., lat. 118 mm. ; diameter 48 mm. The smallest 

 specimen was obtained at station 5283. The ventral portion of this is 

 broken, which prevents giving the height; but the breadth is 14.5 mm. 



Lima {Callolima) smithi seems to prefer a finely sandy mud bottom. 

 It was dredged at depths varying from 281 to 508, or at an average of 

 401 fathoms. 



This species is named for Dr. Hugh M. Smith, Commissioner of 

 Fish and Fisheries and director of the Philippine Expedition. 



Specimens were obtained at the following stations: 



