NO. 1978. GIA-NT SPECIES OF THE GENUS LIMA—BARTSCH. 237 



Station 5124, north of Point Origon, Mindoro (lat. 12° 52' N".; 

 long 121° 48' 30" E.), in 281 fathoms, on soft green mud bottom. 

 Cat. No. 256978, U.S.N.M. 



Station 5283, off Malavatuan Island (lat. 13° 48' 30" N.; long. 

 120° 28' 40" E.), in 280 fathoms, on dark gray sand bottom; bottom 

 temperature, 46°.8; density of water at bottom, 1.02517. Cat. No. 

 237577, U.S.N.M. 



Station 5423, south of Cagayan Island, Jolo Sea (lat. 9° 38' 30" N.; 

 long. 121° 11' E.), in 508 fathoms, on gray mud and coral sand 

 bottom; bottom temperature, 49°.8. Cat. No. 255175, U.S.N.M. 



Station 5513, off Camp Overton Light, Mindanao (lat. 8° 16' 45" 

 N.; long. 124° 02' 48" E.), in 505 fathoms, on gray mud and fine 

 sand bottom. Cat. No. 255177, U.S.N.M. 



Station 5533, off Balicasag Island (lat. 9° 27' 15" N.; long. 123° 

 31' 48" E.), in 432 fathoms, on green mud and sand bottom; bottom 

 temperature, 53°. 3. Cat. No. 256977, U.S.N.M. 



LIMA (CALLOLIMA) PmLIPPINENSIS, new species. 

 Plates 14 and 15. 



Shell large, of spatulate outline, slightly gaping at the lunule and 

 narrowly so for the entire length of the posterior lateral margin; 

 yellowish white, with concentric bands of pale lemon yellow, which 

 probably mark resting stages. Hinge slightly curved, bending 

 slightly upward posteriorly; scarcely at all produced anteriorly 

 beyond the beak. Outer surface marked with well-incised, fine, quite 

 regular and fairly regularly spaced wavy radiating riblets excepting 

 a narrow band that extends from the beak ventrally, spreading 

 slightly to form a triangular area wdth the beak at the angle, which is 

 free from these markings. The incised lines are a little stronger at 

 the lunule than anywhere else. Interior bluish white, through which 

 the yellow areas of the outside show. Dorsal boundary of the resilium 

 evenly curved; the ventral sigmoid. 



The type, Cat. No. 256976, U.S.N.M., was dredged at station 5373, 

 off the outer Tayabas Light (lat. 13° 40' N.; long. 121° 31' 10" E.), in 

 190 fathoms (sounding not made but taken from chart), on gray mud 

 bottom. It measures: alt. 177 mm., lat. Ill mm.; diameter 37 mm. 



LIMA (CALLOLIMA) RATHBUNI, new species. ' 



Plates 16 and 17. 



Shell very large, slightly gaping for about a third of the anterior 

 lateral margin and for about half of the posterior lateral; lemon 

 yellow, fading to yellowish white at the edges. Outlines irregularly 

 oval; hinge slightly, obliquely, downward slanting posteriorly, 

 scarcely produced anterior to the beak; lunule concavely, obliquely 

 sloping; the remaining outline curving in a regular oval. Outer 



