66 



out the main differences. In 1S96 Chun established the genus Brittoinysis on a specimen of 

 a new species, B. Vogtii Chun, taken near Madeira, but the differences between Euchcctoviera 

 and Brutomysis pointed out by him cannot be considered of generic value. Five valid species 

 have been established: E. typica G. O. S., E. (Brutouiysis) Vogtii Chun, E. limbata Illig, 

 E. tenuis G. O. S. (= E. Foivlcri Holt & Tatt.), and E. glyphidophthalmica Illig; on a sixth 

 species, E. mcrolepis Illig, Tattersall has established a closely allied genus, Enchcstomeropsis . 

 The "Siboga" collection contains two species, one of which is new. 



38. Euchcetojiiera tenuis G. O. Sars. PI. X, fig. ^a. 



1883. Euchatoinera tenuis G. O. Sars, Forh. Vid. Selsk. Christiania for 1S83, N" 7, p. 42. 

 1885. Euc/ue/oiiicra tenuis G. O. Sars, Challenger Rep. p. 214, PL XXXVII, figs. 21 — 24. 

 1905. Euclueiomcra Fowleri Holt & Tattersall, Fisheries, Ireland, Sci. Invest. 1902 — 3. [1905J, 

 p. 123 and 144, PI. XXIV, figs, i — 3. 



Stat. 143. August 7. Lat. i°4'.5S., long. I27°52'.6E. 1454 m. Hensen vertical net, from 

 1000 m. depth to surface, i specimen, an adult female. 



Stat. 276. January 9. Lat. 6° 47'. 5 S., long. 1 28^40'. 5 E. Hensen vertical net, from 750 m. 

 deptli to surface. I specimen, a probably adult male. 



Remarks. — In 1905 Holt & Tattersall gave an excellent description with a fine 

 figure of this species and pointed out the differences between their animals and .Sars" represen- 

 tation of his E. tciuiis. In 1907 I e.xamined Sars' type preserved in the British Museum, and 

 found that it agrees perfectly with Holt & Tattersall's description and figure of E. Fowleri, 

 but not with the figures in the "Challenger" Report. Sars has overlooked that the functional 

 facets of the eyes are confined to an anterior and a small postero-lateral part, while a large 

 intermediate area has no retinal elements. Also the telson does not agree with Sars' figure. 

 In 1909 Tattersall cancelled E. Fotvleri as a synonym, because, as he states in his paper 

 on the "Maia" and "Puritan" Schizopoda, I had told him my result in a letter and Holt in 

 comparing the types of E. tenuis with E. Fozvleri had arrived at the same result. 



A few remarks may be added. The antennal squama (fig. 3^) is at least four and a 

 half times, generally five times, as long as broad, with the outer margin feebly concave. 



Length of the female with marsupium 7.5 mm.; the male is a little smaller. 



Distribution. — The "Challenger" specimen was secured, "at the surface of the 

 sea, in the .South Pacific, oft" the coast of Chili". Holt & Tattersall mention the species from 

 off the west coast of Ireland, from the Bay of Biscay and from the Mediterranean; it has been 

 taken by the Prince of Monaco at lat. 3i°o6'N., long. 24°o6'.45"W., 5000 — o m. (Hansen), and 

 in his Report on the Schizopoda from the German Plankton Expedition Ortmann enumerates a 

 number of stations in the tropical Atlantic on both sides of the equator, in the Sargasso Sea 

 and the "Florida current". 



39. Euclurtoinera oculaia n. sp. PL X, figs. \a — 4^?. 



Stat. 185. September 12. Lat. 3''20 S., long. I27°22.9E. Hensen vertical net, from 1536m. 

 to surface, i specimen, an immature female without marsupium. 



