572 SCIENTIFIC RECORD FOR 1882. 



(9.) Heteromitidse; (10.)Trepomonadid8e; (ll.)Polytomid8e; (12.)Pseudo- 

 sporidse; (13.) SpumellidsBj (14.) Trimastigidae ; (15.) Tetramitidoe; (16.) 

 Hexamitidse ; (17.) Lophomonadidse ; and (18.) Catallactidae. 



Order 5. Ghoanoflagellata, or Discostomata, with 2 sections : 



Section I. Gymnozoida, with 3 families : (1.) Codonosigidae ; (2.) Sal- 

 pingoecidse ; and (3.) Phalansteriidae. 



Section II. Sarcocrypta (the Sponges not described). 



Order 6. Eustomata, with 9 families : (1.) Paramonadidae; (2.) Asta- 

 siadaej (3.) Eugleuidse ; (4.) IsToctilucidae ; (5.) GhrysomouadidsB; (6.) 

 Zygoselmidae ; (7.) Chilomonadidae 5 (8.) Anisonemidse ; and (9.) Sphe- 

 nomonadidse. 



Order 7. Cilioflagellata, with 5 families : (1.) Peridiniidse ; (2.) Heter- 

 omastigidse ; (3.) Mallomonadidoe ; (4.) Stephanomonadidae j and (5.) 

 Trichonemidae. 



The Families of Ciliates. 



Mr. Kent's " class " of " Ciliata" is identical with that called Infusoria 

 (after the exclusion of the Suctoria) by some recent authors, e. g. Pro- 

 fessor Glaus, and his orders bear names that have been current for some 

 time. Perhaps the most noteworthy characteristic is the number of 

 families which is greater than is given in any other text-book. Thirty- 

 four are admitted, viz : 



Order 1. Holotricha, with 13 families : (1.) Paramoecidae ; (2.) Proro- 

 dontidae; (3.) Trachelophyllidas ; (4.) Colepidae; (5.) Euchelyidae; (6.) 

 Trachelocercidae ; (7.) Tracheliidae ; (8.) Ichthyophthiriidae ; (9.) Oph- 

 ryoglenidae; (10.) Pleuronemidse ; (11.) Lembidae ; (12.) Trichonymphi- 

 daB ; and (13.) Opalinidce. 



Order 2. Heterotricha, with 7 families: (1.) Bursariidae; (2.) Sjnros- 

 tomidae; (3.) Stentoridae; (4.) Tintinnodae ; (5.) Trichodinopsidae ; (6.) 

 Codonellidae ; and (7.) Galceolidae. 



Order 3. Peritricha, with 8 families: (1.) Torquatellidae ; (2.) Dicty- 

 ocystidae; (3.) Actiuobolidae ; (4.) Halteriidae; (5.) Gyrocoridae; (6.) 

 TJrceolariidaB; (7.) Ophryoscolecidae ; and (8.) Vorticellidae. 



Order 4. Hypotricha, with 6 families : (1.) Litonotidae 5 (2.) Ghlamy- 

 dodontidae; (3.) Dysteriidas ; (4.) Peritromidae ; (5.) OxytrichidaB; and 

 (6.) Euplotidae. 



The families of Tentaculifers. 



A special class is admitted for the reception of the suctorial Infuso- 

 rians — the "Tentaculifera" — and its representatives, included by Glaus 

 and other zoologists in one family, are distributed by Mr. Kent into two 

 orders and six families, viz : 



Order 1. Suctoria, with 4 families : (1.) Ehynchetidae; (2.) Acinetidae; 

 (3.) Dendrocometidae ; and (4.) Dendrosomidae. 



Order 2. A ctinaria, with 2 families: (1.) Ephelotidae; and (2.) Ophry- 

 odendridae. 



