246 APPENDIX TO NEMATODA 



12. Eustoma van Beneden, 1871. 



van Beneden (1871, Mem. Acad. Roy. Belg., xxxviii, 19, 92) 

 gives no description of the worm named by him Eustoma 

 truncatum, which was found in Raja clavata. He gives two 

 figures (Pi. Ill, fig. 9) which apparently represent two views 

 of the head, but its characters are very vaguely indicated. 



13. Filarina Hammerschmidt, 1838. 



The worm named Filarina vitrea by Hammerschmidt (1838, 

 Isis (5), 358), and found by him in the intestine of a beetle 

 (Trichius hemipterus), is unrecognizable. Possibly it was a 

 larval Spirurid. 



14. Labyrinthostoma Cobb, 1898. 



This name occurs in the legend to a figure, thus : — " Fig. 

 65. — Head of a species for the reception of which the author 

 proposes the new genus Labyrinthostoma. The pharyngeal 

 bulb is here well developed." There is no further description, 

 and the species is apparently not named or otherwise indicated. 



Cobb, 1898, Agric. Gaz. N.S.W., Sydney, ix, 421. 



15. Lineola Kolliker, 1845, nee Baer, 1827. 



Body thread-like, tapering at each end. Mouth " anstiindig," 

 surrounded by six small feelers. Oesophagus long, somewhat 

 thickened behind. Testis single, moniliform. Two si^icules 

 present. Ovaries paired, short and broad. Vulva in middle 

 of body. 



Hab. Marine (among sea-weed). 



Genotjqic : L. sieholdii Kolliker, 1845 (by page precedence). 



Kolliker, 1845, Verh. schweiz. naturf. Ges., xxix, 86. 



16. Lumbricicola Friedlander, 1895. 



The name Lumbricicola vasorum was given by Friedlander 

 (1895, Zeitschr.f. viss. Zool., Ix, 278) to some small Nematodes 

 found by him in the blood-vessels of an Earthworm. The 

 worms were only studied in sections, and the description given 

 of them does not enable us to form any opinion as to their 

 systematic position. 



17. Mitrephorus v. Linstow, 1877, nee Schoenherr, 1837. 



Slender forms with smooth cuticle. Head hemispherical, 

 distinct, with two rows of " openings," each with a swollen 

 border, running up into a small stalk. The anterior row 

 consists of four such " openings," the posterior of eight. 

 Oesophagus swollen behind into a slight bulb, containing a 



