356 PR0CEEDIN08 OF THE NATIONAL MUSEUM, vou Si. 



Plate 43. 



Fig. 1. Enlirnostraca galapagensis Bartsch, type, length 3.8 mm. 



2. Melanella (Balds) gibba de Folin, type, length 3 mm. 



3. Sabinella meridionalis Bartsch, type, length 3.9 mm, 



4. Sabinella chathamensis Bartsch, type, length 3.8 mm. 



5. Sabinella balceri Bartsch, type, length 2.7 mm. 



6. Ilaliella cJiilensis Bartsch, type, length 5.5 mm. 



7. Sabinella opalina de Folin, type, length 9.5 mm. 



8. Ilaliella abyssicola Bartsch, typo, length 10.4 mm, 



Plate 44. 



Fig. 1. Ilaliella lomana Dall, type, length 20.2 mm. 



2. Sabinella (?) ptilocrinicola Bartsch, type, length 9.5 mm 



Plate 45. 



Fig. 1. Strombiformis alaskensis Bartsch, type, length 4.2 mm. 



2. Scalenosfoma babylonia Bartsch, type, length 3 mm. 



3. Strombiformis rivcrsi Bartsch, type, length 12 mm. 



4. Scalenostoma rangii de Folin, type, length 2.7 mm. 



5. Strombiformis califomica Bartsch, type, length 11.5 mm. 



Plate 46. 



Flo. 1. Strombiformis fuscostrigata Carpenter, type, length 4.7 mm. 



2. Strombiformis panamens^s Bartsch, type, length 6 mm, 



3. Strombiformis lapaznna Bartsch, type, length 7.8 mm. 



4. Strombiforinis lownsendi Bartsch, type, length 11 mm. 



5. Strombiformis almo Bartsch, type, length 7 mm. 



Plate 47. 



Fio. 1. Strombiformis proca de Folin, type, length 3.3 mm, 



2. Strombiformis acuta Sowerby, type, length — mm. 



3. Strombiformis elegantissima de Folin, type, length 5 mm. 



4. Strombiformis hemphilli Bartsch, type, length 3.1 mm. 



5. Stromhi''ormis burragei Bartsch, type, length 2.7 mm. 



6. Strombiformis varians Soworby, cotype. 



7. Strombiformis barthelowi Bartsch, type, length 5 mm. 



8. Strombiformis varians Sowerby, cotype. 



Plate 48. 



FlQ. 1. Niso interrupta Sowerby, length 10.3 mm. 



2. Niso (?) antiselli Anderson and Martin, type, length 7.f( djui 



3. Niso interrupta Sowerby. 



4. Niso etcolpa Bartsch, type, length 17.5 mm. 



5. Niso splendidala Sowerby, type, length 38 mm. 



6. Niso imbricata Sowerby, type, length 21 mm. 



Plate 49. 



Plo. 1. Lavibcrfia cooieana Bartsch, type, length 3.7 mm. 



2. Stilifer astericola Brodcrip, length 8.6 mm. 



3. Mucronnlla (?) bnthymetrae Dall, type. 



4. Niso lomana Bartsch, type, length, 14.5 mm. 



5. Niso hipolilensis Bartsch, type, length 3.1 mm. 



