NOTES ON PARASITES 91 



entirely overlooked the fact; Dujardin in 1843 gave practicallythe 

 same définition for an assemblage [Apoblema) of species to wliicli 

 he attributed the rank of a subgenus, while E. Blanchard raised 

 Apoblema to generic rank in 1847. According to Braun, Brock's 

 genus Ewrycœlum (original description not at our disposai) is 

 identical with Apoblema. 



Apoblema has been accepted as subgenus by Stossich (1888), 

 Braun {Verm.es), Railliet (1893) and others. It has been given gene- 

 ric rank byE. Blanchard (1847), Stossich (1892), Monticelli (1893), 

 Looss (1896) and apparently also by Railliet (1896). 



Kœllikeria Cobbold, 1860. — ,Type, Monostoma filicoUe Rudolphi, 

 1819. 



1860, Kôllikeria Cobbold [nec Agassiz, 1862 (1) ; nec Mingazzini, 

 1891], Journ. Proc. Linnean Soc. London (for 1859), V, Zool., n" 17, 

 (june 3, 1860), p. 31. Only and hence type species, Monostoma 

 filicolle Rudolphi, 1819. 



Kœllikeria (also written Kôllikeria), established by Cobbold, has 

 been accepted by several authors : Braun (Vermes), Stossich (1892), 

 Railliet (1893). 



Leucochloridium see Urogonimus. 



Mesogonimus see Clinostomum. 



Monocotylea Diesing, name of tribe, see Fascioliclae. 



Monorchis Monticelli, 1893, subgenus. — Type, Distomum monor- 

 chis, 1893, Distomum {Monorchis) Monticelli [nec (2) Monorchus Bas- 

 tian, 1863], Zool. Jahrb., Supplement-Heft III, p. 149. — Species, 

 D. pachysomum and D. monorchis. 



We designate Distomum monorchis as the type of this subgenus, 

 but do not care to express an opinion on the validity of the group. 



Opisthorchis see Campula. 



Opistorchis, for Opisthorchis, see Campula. 



Otiotrema Setti, 1897. — Type, 0. torosum. 

 1897, Otiotrema Setti, Atti délia Società ligustica di scienze 

 nat. e geogr., VIII, no2, pp. 4-8, tav. VIII, figs. 1-3. Type, 0. torosum 

 Setti, 1897. 



The publication of this curions genus reached us after we had 



(1) Kœllikeria Agassiz, 1862, Coclcntnratc ; Kœllilicria Mingazzini, 1891, Pro- 

 tozoan. 



(2) Monorchus Bastian, 186i3, Worm. 



