45. _Lembus infusionum_, n. sp.
46. _Lembus pusillus_ Quenn.
Family OPALINIDÆ.
47. _Anoplophrya branchiarum_ Stein.
Order HETEROTRICHIDA.
Family BURSARIDÆ.
48. _Condylostoma patens_ Müll.
Family HALTERIDÆ.
49. _Strombidium caudatum_ From.
Family TINTINNIDÆ.
50. _Tintinnopsis beroidea_ Stein.
51. _Tintinnopsis davidoffi_ Daday.
Order HYPOTRICHIDA.
Family PERITROMIDÆ.
52. _Peritromus emmæ_ Stein.
Family OXYTRICHIDÆ.
53. _Epiclintes radiosa_ Quenn.
54. _Amphisia kessleri_ Wrzes.
Family EUPLOTIDÆ.
55. _Euplotes charon_ Ehr.
56. _Euplotes harpa_ Stein.
57. _Diophrys appendiculatus_ Stein.
58. _Uronychia setigera_, n. sp.
59. _Aspidisca hexeris_ Quenn.
60. _Aspidisca polystyla_ Stein.
Order PERITRICHIDA.
Family LICHNOPHORIDÆ.
61. _Lichnophora macfarlandi_ Stevens.
Family VORTICELLIDÆ.
62. _Vorticella marina_ Greeff.