892 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL. xx. 



PLATE LXXXII. 



Fig. 1. Leda rniidntn (Donovan), p. 855. Interior of right valve of specimen No. 



38205; X about 5i. 



"2. Leda pirnnla (Miiller), p. 855. Hinge of right valve of specimen No. 73077; 

 X ahont 5i. 



3. NrUoiu-Ua siiborata Verrill and P.nsh, p. 878. Hinge of left valve of speci- 



men No. 34326; X about 10. 



4. The same. Turned up to show shape of teeth. 



5. Yoldiella inliaia Verrill and Bush, p. 864. Hinge of a left valve No. 35575; 



X about 10. Turned up to show shape of teeth. 



6. The ; ame. Front view. 



7. Yoldiella. dissimilis Yerrill and Bush, p. 872. Hinge of a left valve No. 



38416; X 20. 



8. Yoldiella fraterna A'errill and Bush, p. 867. Hinge of right valve of type 



specimen from station 947 ; X 20. 



9. Leda biishiana Verrill, p. 854. Hinge of both valves of type specimen No. 



35729; X about 6L 



10. Malletia polita Verrill and Bush. p. 876. Hinge of a left valve No. 78792: 



X about 6i. Some of the teeth are broken away just behind the beak. 



11. Yoldiella iris Verrill and Bush, p. 863. Hinge of left valve of a young- 



specimen; X 20. 



PLATE LXXXIII. 



Fig. 1. Crenella fray His Verrill, p. 847. Interior of right valve of type specimen No. 

 No. 41543; X about 3. 



2. The same. Hinge of another larger, imperfect specimen No. 40676 ; X about 3. 



3. Yoldiella jeffreysi (Hidalgo), p. 866. Exterior of a left valve No. 78958; 



X about 13. 



4. Llmopsisprofundlcola Verrill and Bush, p. 847. Interior of a right valve of 



a young specimen No. 38143; X about 3. 



5. Nucula stiborata Verrill and Bush, p. 8">2. Exterior of left valve of type 



specimen No. 40476; X about 13. 



6. Abra lont/icallis (Scacchi) variety ameriouia Verrill and Bush, p. 778. Inte- 



rior of right valve of specimen No. 52170; X about 3. 



7. The same. Hinge of both valves of the same specimen; X about 8. 



PLATE LXXXIV. 



Figs. 1 and 2. Chlamys benedicli Verrill and Bush, p. 834. Exterior of both valves 

 of a young specimen found among For;iminifera ; X 20. 



PLATE LXXXV. 



Fig. 1. Cyclopecfen leptah-us Verrill, p. 839. Portion of upper or left valve of type 

 specimen No. 38413 to show character of sculpture; x 10. 



2. Cyclopecten natms Verrill and Bush, p. 837. Exterior of lower or right valve 



of a young specimen from station 2265; x 5. 



3. The same. Exterior of left valve of a larger specimen from the same 



station ; x 5. 



4. The same. Hinge of the same valve; X 13. 



5. Cyclopecten pmtulosux Verrill, p. 839. Portion of left valve of specimen 



No. 48765 to show character of sculpture; X 10. 



6. The same. Piece of a left valve of another specimen No. 48761 to show vari- 



ation in form of pustules; X about 13. 



7. Camptonectes grocnlandica (Sowerby) Verrill, p. 837. Exterior of right valve 



of specimen No. 78387; X 5. 



