262 
The Ascaridae 
Hob .—intestine of fish-eating mammals and birds, and of fishes. 
Species: 
C. spiculigerum (Rud., 1809) (genotype) from cormorants, etc. 
C. osculatum (Rud., 1802) from seals. 
C. radiatum (v. Linst., 1906) from seals. 
C. rectangulum (v. Linst., 1906) from seals. 
C. scotti (Leiper and Atkinson, 1914) from Diomedea. 
C. microcephalum (Rud., 1809) from Ardea, etc. 
C. rodhaini (Gedoelst, 1916) from Plotus rufus. 
C. auctum (Rud., 1809) 1 from Blennius, etc. 
C. clavatum (Rud., 1819) from various fishes. 
C. aduncum (Rud., 1809) from Clupea. 
And probably other species from fishes (see Dujardin (1845), pp. 208-211). 
Gedoelst (1916) has compiled a list of species to be referred to Kathleena. 
These should probably all be included here, and we have therefore the fol¬ 
lowing additional species: 
C. lobulatum (Schneider, 1866) from Platanista gangetica. 
C. falcigerum (Railliet and Henry, 1907) from seals. 
C. multipapillatum (v. Drasche, 1882) from Tantalus loculator. 
C. micropapillatum (Stossich,1890) from Pelecanus spp. 
C. ovale (v. Linst., 1907) from Podiceps cristatus. 
C. rosarium (Connal, 1912) from Nycticorax sp. 
C. tricuspe (Gedoelst, 1916) from Ardea sp. 
C. punctatum (Gedoelst, 1916) from ? Pseudotantalus ibis. 
Kathleena arcuata Gedoelst, 1916, from Ardea, sp., appears to the writer to be identical with 
C. microcephalum (Rud.). 
(5) Dujardinia Gedoelst, 1916. 
Oesophagus with a small posterior spherical bulb. An intestinal caecum 
present. No oesophageal appendix. Interlabia present. Dentigerous ridges 
absent. 
Species: 
D. helicina (Molin, 1860) (genotype) from Crocodilus spp. 
D. halichoris (Owen, 1833) from Dugong spp. 
(6) Angusticaecum, n.g. 
Oesophagus without ventriculus or distinct bulb. A long slender caecum 
springs from the intestine a little behind its origin. No oesophageal appendix. 
Interlabia absent. Dentigerous ridges present. 
Species: 
A. holopterum (Rud., 1819) (genotype) from Testudo spp. 
A. [ Porrocaecum ] numidicum (Seurat, 1917) from Rana ridibunda. 
(7) Amplicaecum, n.g. 
Oesophagus without ventriculus or distinct bulb. A wide intestinal caecum 
parently an error. They have not been observed in the species examined, and the distinction 
between Contracaecum and Kathleena , based on this point, does not appear to hold good. 
1 C. auctum has the interlabia much reduced. 
