SPA'JLDING 



PLATE I 



J. F. Didusch fecit. J 



FIG. 1. No. 407, 9 nun. X 21. 



FIG. 2. No. 792, 8 mm. 



FIG. 3. No. 2702, 8 mm. X Iv5. 



FIG. 4. No. 1784, 12 mm. X 21. 



FIG. 5. No. 1936, 14 mm., male. X 1 I ">- 



FIG. 6. No. 2023, 15 mm., female. X 14.5. 



NOTE: Figures 1, 3, 4, 5, and G are drawings made directly from the specimen. Figure 2 was drawn fn nn thr model. 



remaining figures are photographs: -<>IIH> of these, owing to difficulty in obtaining clear negatives, liavr I n retouched to 



bring out certain details of structure that would otherwise be lost. 



