SYSTEMATIC ACCOUNT 171 



Tomopteridae, Stop-Bowitz (1948) used indentation of the aciculae in the second pair of chaetigers as 

 a character of specific importance. In no specimen examined by me have I found support for such use. 

 Two genera are known in this family, Enapteris Rosa, 19086 with pinnules which do not border the 

 inner edge of parapodia-rami and Tomopteris Eschscholtz, 1825, in which the pinnules surround the 

 rami. No specimens of Enapteris, a monospecific genus, have been seen in the plankton samples 

 examined here. 



Genus Tomopteris Eschscholtz, 1825 



Notopodial and neuropodial pinnules always completely surrounding the parapodial trunk. 



Type species. Tomopteris onisciformis Eschscholtz, 1825. 



Type locality. South Seas (Pacific). 



It has long been the practice of many, but not all, authors to split this genus into two subgenera, 

 Tomopteris sensu stricto, almost always with hyaline glands, always without rosette glands and normally, 

 but not always, without a first pair of chaetigers and a tail, and Johnstonella Gosse, 1853, always with 

 rosette glands, normally but not always, without hyaline glands and normally, but not always, with 

 a first pair of chaetigers and a tail. I have always had the greatest difficulty in separating rosettes and 

 highly pigmented hyaline glands, and have retained the former only where it is clearly comparable with 

 common usage. I can, however, see no point in retaining this subgeneric division when it neither separates 

 the genus into natural groups nor represents a practical method of separating groups of species. 



Table 1. In this table the presence ( x ) or absence { — ) of the more important diagnostic 

 characters in the species described below is indicated 



Hyaline glands 



Tail 



x 

 x 

 x 

 x 



Tomopteris planktonis Apstein, 1900 



Original localities. In the Atlantic Ocean between Ascension Island and Brazil, Ascension Island 

 and Cape Verde Islands and between Newfoundland and Iceland. 



Tomopteris planktonis Apstein, 1900, p. 42, pi. 11, figs. 21, 22, and pi. 12. 



Tomopteris planktonis Reibisch, 1905, pp. 9-10, figs. 14, 15. 



Tomopteris (Tomopteris) planktonis Rosa, 19086, pp. 301-2. 



Tomopteris (Tomopteris) planktonis Malaquin and Carin, 1911, pp. 14-15- 



Tomopteris ligulata Ehlers, 1917, pp. 232-33 (in part). 



Tomopteris (Tomopteris) planktonis Malaquin and Carin, 1922, p. 22, p. 27, pp. 39-40; pi. 10, figs. 1, 2 (in part). 



Tomopteris (Tomopteris) planktonis Fauvel, 1923, pp. 224-5, ^§- 84 rf. 



Tomopteris (Tomopteris) planktonis Augener, 1929, pp. 303-4. 



Tomopteris (Tomopteris) carpenteri Monro, 1930, pp. 84-6 (in part). 



Tomopteris planktonis Fauvel, 1932a, p. 18. 



