56 Smith and Sarger — St. George's Banks Dredgings. 



EXPLANATION OF PLATES. 

 Plate I. 



Figure 1. — Stylifer Stimpsonii Verrill; specimen from 60 fathoms, George's Bank 

 (haul i) ; enlarged 10 diameters. 



Figure 2. — Ringicula nitida Verrill ; specimen from 110 fathoms ; enlarged 14 diameters. 



Figure .3. — Entalis striolata Stimpson ; several views of animal, with the foot in differ- 

 ent states of expansion ; enlarged about 1^ diameters. 



Figure 4. — Astarte lens Stimpson ; adult ; natural size. 



Figure 5. — The same ; young specimen ; natural size. 



Figure 6. — Astarte undata Gould ; inside of valves, showing the hinge ; natural size. 



Figure 7. — The same ; young specimen ; natural size. 



Figure 8. — The same ; adult specimen ; natural size. 



Figure 9. — Variety of the same ; adult specimen ; natural size. 



Figure 10. — Astarte elliptica (Brown) ; natural size. 



Figure 11. — Cryptodon ohesus Verrill ; inside of valve ; enlarged .3 diameters. 



Figure 12. — Astarte Banksii Leach ; natural size. 



Figure 1 was drawn from nature by S. I. Smith; 2, 5, 6, 7, 8, 9, 11, by Professor 



Verrill ; 3, by J. H. Emerton ; the rest from Binney's Gould. 



Plate II. 



Figure 1. — Sertularia argentea Ellis and Solander ; a branch bearing reproductive 



capsules (gonothecse) with the soft parts removed ; much enlarged. 

 Figure 2. — Alcyonium carneum Agassiz ; three of the polyps fully expanded ; much 



enlarged. 

 Figure 3. — Crista eburnea Lamouroux ; a cluster of branches, enlarged. 

 Figure 4. — The same ; a branch bearing ovicells, more highly magnified. 

 Figure 5. — Cerianthus horealis Verrill ; entire animal removed from its tube and fully 



expanded ; about one-third natural size. 



Figures 1 and 2 were drawn from nature by Professor Verrill ; 3 and 4 by Profes- 

 sor A. Hyatt ; 5 by J. H. Emerton. 



Plate III. 

 Figure 1. — Xenoclea megachir Smith, male ; one of the first pair of legs with its epime- 



ron, seen from the outside ; enlarged 20 diameters. 

 Figure 2. — The same ; one of the second pair of legs, seen in the same position and 



enlarged the same amount. 

 Figure 3. — The same ; one of the third pair of legs, with its epiraeron and gill, seen 



from the outside, and showing the glandular organ within ; enlarged 20 diameters ; 



a, the tip of the dactylus, showing the perforation ; enlarged 100 diameters. 

 Figure 4. — The same ; one of the fifth pair of legs, with its epimeron and gill, seen 



from the outside ; enlarged 20 diameters. 

 Figure 5. — Stenothoe peltata Smith, female ; one of the second pair of legs, with its 



epimeron, seen from the outside ; enlarged 16 diameters. 



