132 



INDEX. 



King's yellow worms, the nurses of 

 CercaricB, 62. 



Leucochloridium paradoxum, 95. 



Limnceus stagnalis, 53-59, 60. 



Loven on Syncoryne ramosa, 30; on 



Campannlarice, 32. 

 Lucernarice, Elirenberg on the, 19. 



general description of, 11 ; 

 propagation of, 12 ; " nurses" of, 

 2 4-2 6 ; M. aurita, development of, 13 ; 

 description of young of, 14 ; Strohila 

 developed into, 19 ; Mstory of re- 

 searches on, ib. ; relation ot periods 

 of development to season, 25 ; M. 

 papillata, Abilgaard on, 31. 



Meyen on Salpce, 40. 



Miescher, memoir on cestoid entozoa, 

 102. 



Mihie Edwards on Ascidia, 47. 



lionostonmm, &\.; M. mutabile, descrip- 

 tion of young of, 71. 



Müller, C. E., on Coryne, 30. 



Nematoidece, 100. 



Nitzch on the pupa state of Cercarice, 

 57. 



Nordman on Trematoda in the eyes of 

 animals, 96. 



"Nurses" of Medusae, 24-26; oi Salp(^ 

 46 ; of Campamilari(S, 36 ; of Cer- 

 cariae, 88. 



"Nurses" and "feeders" of insects, 

 distinction between, 111 ; both al- 

 ways females, ib. 



Opalina raniirum of Ehrenberg, 96. 



Paludina vivipara, 62 ; occurrence of 



pupse in auricle of, 88. 

 ParaiiKBcium, 90. 

 " Parent-mirses" of Cercarice, 69 ; of 



Distoma duplicatum, 93. 

 Planorhis cornea, 53. 



Phmiularice, 37. 



Polypes, clavtform, 26 ; coralline, 37. 



Pupa state of Cercar. ephemera, 88 ; of 



Cercar. armata, 77. 

 Psorospermata of Müller, 97. 

 Pyrosoma, 47- 



SaccuH in which Cercarice occur, 81 ; 

 are in fact the "nurses," 84. 



Salpce, alternate generation of, 38-39 ; 

 description of, 38 ; associated and 

 solitary, 39 ; Meyen on, 40 ; Cha- 

 misso on the alternate generation 

 of, 40 ; examination of Eschricht's 

 theory of the development of, 40-42; 

 Eschricht's anatomical researches 

 on, 112; S. zonaria, 39-40; S. pin- 

 nata, Chamisso on, 41; S. cordi- 

 formis, 40-41. . 



Sars, M., on Corymmpha nutans, 30 ; 

 on Scyphistoma-strobila, 21 ; descrip- 

 tion of the young of Äscidi<s, 48; 

 on the development of Salpce, 46. 



Scyphistoma-strobila, description of, 1 9, 

 20, 21. 



Siebold on pupa state of Cercar. 58 ; 

 period of year at which the animals 

 quit the pupae, 59; on develop- 

 ment of Bistomata within saccular 

 " ymrses" 85. 



Sph(Brularia, probably a " nurse," 100. 



Succinea amphibia,ocG\yxr:enG& oi,Leuco: 

 paradox mi2iCiT\.&, horns of, 95. 



Syncoryfie Sarsii, 27, 31; S. ramosa, 

 Loven on, 30-31. 



Termites, division of labour among, 



110. 

 Tetrarynchus, 102. 

 Trematoda, development of, 52. 

 Trematode animals, development of, 



94. 

 Tubularice, 37. 



Wasps, feeders among, 109, 



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PRINTED BV C. AND J. ADLARD, 



BARTHOIiüMEW CLOSE. 



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