A Bevisio7i of the Genus Auliscus Ehrh., &c. By J. Battray. 895 



large, unequal, mostly 4-sided, outside of it the radial lines distinct, 

 slightly concave towards processes, with transverse anastomosing 

 lines, few irregular. Processes 2, outer edge close to border, 

 mammillate, elliptical, breadth • 02 mm. 



Habitat : Manilla (Hardman !) ; locality unknown (Weissflog !). 



A. Schmidtii Griindl., Sch. Atl., pi. xxx. fig. 7. 



Irregularly elliptical, lobate, major axis • 1425 mm., about 1^ 

 times minor. Surface with central portion slightly elevated, its outer 

 edge irregularly rounded, distinct, not reaching processes, but extending 

 to about 3/5 of radius from centre. Colour pale grey. Central space 

 inconspicuous, rounded, about • 005 mm. broad. Markings on central 

 portion faint, irregular, distant, striae forming an irregular reticulum, 

 most distinct towards its outer edge, those converging to the processes 

 short, distinct, at wide unequal intervals on the outer side of the pro- 

 cesses, a distinct reticulum sometimes present but not reaching border, 

 the striae around the border straight or somewhat convex towards pro- 

 cesses, distinct, rarely closely disposed. Processes 2, rounded, about 

 0'015 mm. broad, at some distance from border. 



Habitat: From Holothurians, Sumatra' (Deby !) ; King George's 

 Sound (Grove \) ; Campeachy Bay (Schmidt), 



A. opulenius sp. n. 



Circular, diam. • 0875 mm. Surface with outer edge of central 

 portion indistinct, concave between processes. Colour pale smoky 

 grey. Central space round, distinct, • 0125 mm. broad. Markings 

 minute, punctate, forming distinct strands, diverging from central 

 space, sometimes irregular with hyaline interspaces, the strise converg- 

 ing to processes irregular, outside of central portion narrow hyaline 

 lines between the punctate areas, the striae around the border delicate, 

 radial; reticulum absent. Processes 4, unsymmetrical, somewhat 

 unequal, from 0*0125 to 0-0175 mm. broad.— PI. XIV. fig. 4. 



This form has been united by Grunow with A. cselatus as forma 

 quadriocellata, but it bears little affinity to this species. It is nearer 

 A. speciosus. 



Habitat : Santa Monica deposit (Weissflog !), 



A. speciosus Sch. Atl., pi. Ixxx. fig 5. 



Obtusely quadrangular, diam. 0"15 mm. Surface with central 

 area flat, its outer edge distinct, irregular, concave outwards between 

 the processes at about 2/3 of radius from centre. Elevations beneath 

 processes high. Colour pale smoky grey. Central space round, 

 • 0225 mm. broad. Markings punctate, distinct, on evident strands 

 diverging and widening outwards from central space, and separated 

 by hyaline interspaces, less distinct around the border, delicate striae 

 present around base of processes, a reticulum with unequal meshes 

 well marked outside of central area and sometimes arouud processes, 



3 p 2 



