BY G. I. PLAYF4IR. 665 



Var. OBSCURA, ii.var. (PL xl., f.l3). 



Test smaller than the type, ovate, compressed, broadly rounded 

 behind; sides arching gradually down to the mouth. Orifice 

 elliptical, surrounded by pointed, obscurely three-lobed scales, 

 five visible in front. Wall of the test apparently chitinous, ver}^ 

 slightly silicified; no scales or cement-marks are to be seen. The 

 only markings are a series of broad, longitudinal strijie faintly 

 indicated. With the ^^ oil imm. obj., these break up into series 

 of faint, brick-shaped marks separated by short, transverse lines. 

 No spines noted. 



Length 42-54, breadth 25-35, thick 18, orif. 10-1.3//.. 



Botany (17). 



Seems to be a low form of IJii. compressa; found in company 

 with the type. In size, it is, as might be expected, just a little 

 smaller, and they agree in general shape, compression, and apical 

 plates. It is hardly to be expected that spines should be present; 

 they were exhibited very sparingly by the specimens of the type. 

 Cf. Eit. denticulata Brown, in Cash, I.e., iii., p. 41, PI. 36, f.7-13, 

 for a similar form. 



EuGLYPHA L.EVis Perty. (PI. xl, f.14-16). 



Length 30-55, breadth 15-30, orif. 8-1 5/i. 



Everywhere. 



En. aheolata v. hevis (Perty) Playf., Biol. Richm. R., p. 143, 

 PI. viii., f. 14. The type is oval, or oval-cylindrical, the former 

 Penard's, the latter Perty's type, according to the figure given 

 by Wailes in Cash, I.e., iii., p. 27. All that can be seen of the 

 apical scales is a row of four or five refringent beads across the 

 orifice, the tips of these scales being much thickened. Specimens 

 are not infrequent here, however, in which the apical plates are 

 broad and square in front (PI. xl., f. 16). 



Var. LANCEOLATA, n.var. (PL xl, f.l7). 

 Test smaller than the type, more slender, compressed, lanceo- 

 late, pointed behind, the sides running slightly arched, sometimes 

 nearly straight, to the orifice. In side-view, narrowly lanceolate. 

 Scales as in the type(?). 



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