NO. 2 LALICKER AND MCCULLOCH : TEXTULARIIDAE 141 



Textularia secasensis Lalicker and McCulIoch, new species 

 Plate 16, Figs. 24a, b, c 



Test subtriangular in front view, sides of upper portion nearly paral- 

 lel in elongate specimens, ovate in top view, early portion compressed, 

 peripheral margin subacute; chambers numerous, much broader than 

 high, inflated evenly; sutures very distinct, depressed, curving upward 

 only slightly in the middle and downward near the peripheral margin; 

 wall rather coarsely arenaceous, roughly finished, composed of arenaceous 

 and calcareous grains cemented with calcareous cement ; aperture a broad, 

 low opening at the base of the inner margin of the last-formed chamber, 

 in a slight re-entrant. Length of holotype, 0.75 mm.; maximum width, 

 0.61 mm.; maximum thickness, 0.43 mm. 



Holotype (AHF no. 29) from Hancock Expedition Station 221, off 

 Cape Rule, Socorro Isle, Mexico, located approximately at latitude 18° 

 20' N., longitude 114° 44' W., depth 20 fms. 



This species is very common in the shallow waters off the coasts of 

 Lower California and Western Mexico. It is somewhat like Textularia 

 corrugate Heron-Allen and Earland, but is more elongate, has chambers 

 that are evenly inflated, rounded apertural face, and nearly parallel sides 

 in adult megalospheric specimens. It is also similar to T. agglut'mans 

 d'Orbigny, but differs in being larger and more compressed and in hav- 

 ing a subacute peripheral margin. It has been noted at the following 

 Hancock Expedition stations: 5, 203, 215, 216, 221, 222, 239, 265, 292, 

 300, 301, 307, 311, 313, 315, 316, 317, 320, 323, 333, 410, 422, 423, 

 425, 436, 460, 505, 546, 555, 2013, and 2021. 



Distribution. — In the Gulf of California, off Mexico, Central 

 America, Colombia, and Galapagos Islands, in 2 to 140 fms. 



Textularia scrupula Lalicker and McCuIloch, new species 

 Plate 16, Figs. 25«, h, c, d 



Test small, triangular in front view, subcircular in top view, periph- 

 eral margin broadly rounded, initial end compressed and pointed, adult 

 portion nearly circular; chambers numerous, inflated, width and height 

 nearly equal; sutures somewhat indistinct, depressed, straight; wall 

 coarsely arenaceous, roughly finished except on apertural face, which is 

 smoothly finished, composed of sand grains and calcareous fragments ce- 

 mented with calcareous cement; aperture a low arched opening at the 



