THE 



MONTHLY MICROSCOPICAL JOURNAL. 



DECEMBER 1, 1871. 



I. — Notes on Prof. James Claries FlageUate Infusoria, with 

 description of New Species. By W. Saville Kent, F.Z.S., 

 F.R.M.S., British Museum. 



{Read lefore the Royal Microscopical Society, Nov. 1, 1871.) 



The following is a brief sjmopsis of certain genera and species of 

 Flagellate Infusoria described by Professor James Clark, of Penn- 

 sylvania, U.S., in the ' Memoirs of the Boston Society of Natm-al 

 History,' vol. i., 1866,* with the diagnostic characters of new 

 species interpolated and those of other previously-described ones 



EXPLANATION OF PLATE CV. 



Fig. 1. — A colony of Codosiga echi'mda, magnified 500 diameters. 



„ 2. — A single zooid, detached, magnified 1500 diameters. 



„ 3. — A colony of Codosiga umbeUata, magnified 400 diameters. 



„ 4. — A detached zooid, magnified 800 diameters. 



„ 5. — Another colony of the same species, exhibiting a bi-tripartite ramifica- 

 tion of the supporting pedicle, magnified 75 diameters. 



„ 6. — A colony of Codosiga pulcherrima, magnified 500 diameters. 



„ 7. — Another colony of the same species consisting of only two individuals. 



„ 8. — Salpingccca marina (after Jas. Clk.). 



„ 9. — Salpingceca gracilis (after Jas. Clk.). 



„ 10, 11. — Two solitary and shorter individuals of the same species as observed 

 by the author, magnified 1200 diameters. 



„ 12. — A colony of still shorter individuals, in which the elongate, hollow 

 peduncle is entirely suppressed. Magnified 1200 diameters. 



„ 13. — A variety of Salpingceca amphoridium, attached by a short pedicle, and in 

 this character approaching the stalked species ^S". marina. Magnified 

 1200 diameters. 



„ 14.— ^n ordinary sessile individual of the same species, magnified 1200 

 |r<.iiameters. 



„ 15.— JPwo zooids of BicoscBca lacustris in the condition of full extension, mag- 

 nified 1200 diameters. 



„ 16. — A single individual of the same species, further enlarged, witli the zooid 

 retracted within its lorica, and exhibiting the spiral manner in which 

 the fiagellum is then disposed. 



„ 17. — Two zcoids of Bicosceca socialis, magnified 800 diameters. 



„ 18. — Bicosaeca inclinata, magnified 600 diameters. 



„ 19. — Two compound colonies of Anthopjhysa solitaria, magnified 400 diameters. 



„ 20. — Two zooids of the same species, derived from the longitudinal fission of 

 a single individual, and still connected with one another at their base. 

 Magnified 1500 diameters. 



„ 21. — A compound colony of Anthophysa laxa, magnified 900 diameters. 



* Reprinted in tlie 'Annals and Mngazine of Natural History,' 4th ser., vol. i., 

 1868. 



VOL, VI. U 



