PLATE VI 



Fig. I. Scalpelhim Stearnsi Pilsbry. 



Fig. I. Animal .seen from the left side; natural size. 



Fig. 2 — 3. Scalpellitm Stearnsi Pilsbry, var. robusta n. var. 



Fig. 2. Animal seen from the left side (Station 5); natural size. 

 Fig. 3. Idem (Station 254); magnified 1,1 diameters. 



Fig. 4 — 7. Scalpelhim Stearnsi Pilsbry, var. gemina n. var. 



Fig. 4. Two specimens attached to a sponge (Station 74); natural size. 



Fig. 5. Valves, isolated; natural size. 



Fig. 6. First cirrus; magnified 3'/^ diameters. 



Fig. 7. Edge of mandibles; magnified 18 diameters. 



Pig. 8 — 12. Scalpelhim Stearnsi Pilsbry, var. robusta n. var. 

 Fig. 8. Male; magnified 78 diameters. 

 Fig. 9. Group of three males; magnified 52,5 diameters. 



Fig. 10. Young animal creeping out of the Cypris-shell; magnified 78 diameters. 

 Fig. II. Young animal, recently attached; magnified 36 diameters. 

 F"ig. 12. Extremity of capitulum with the primary scutum and tentacles of the 

 young animal of fig. ii; magnified 168 diameters. 



