NARCOMEDUSAE 63 



The Specimens from Stns 679, 1374 and 1586 are young stages, up to 12 mm. wide; the specimens 

 from Stns 407 and 2061 are 38 mm. in diameter. 



Distribution. Widely distributed in the warm parts of all the oceans including the Mediterranean, 

 approximately between 35° N and 35° S. The present collection adds nothing to the known area of 

 distribution. 



Liriope tetraphylla (Chamisso & Eysenhardt 1821) 

 1953 Liriope tetraphylla Russell, p. 419. PI. 24, fig. 2. Text-figs. 275-82. 

 Occurrence: Stns 89, 91, 100, 102, 273, 275, 280, 282, 468, 690, 691, 699, 701, 702, 703, 704, 705, 706, 707, 708, 



709, 710, 711, 715, 1373, 1374, 1573, 1574, 1580, 1585, 1586, 2033. St. WS 657. (For details of position, date, 



etc., see Table i, p. no.) 

 Stns 89-102, 1373-4 and 2033 are west of the Cape of Good Hope; Stns 273-82 are off the west 

 coast of tropical Africa; Stns 690-715 are on a Une from the Cape Verde Islands along the east coast 

 of South America to south-east of Buenos Ayres; Stns 1573-86 are off the east coast of Africa from 

 the Mozambique Channel to Somaliland. All these localities are within the areas from which the 

 species was known before, but St. 468 is considerably farther south, 54° 48' S, 20° 41' W, north-east 

 of the South Sandwich Islands. St. WS 657 is in the Pacific on the coast of Peru. 



Distribution. Since it has been realized that all forms of Liriope belong to one species, we may 

 state that it is generally distributed in the warm parts of all the oceans, approximately between 40° S 

 and 45° N. Now also found farther south in the Atlantic. 



NARCOMEDUSAE 



Family Aeginidae 



Aegina citrea Eschscholtz 1829 



1829 Aegina citrea Eschscholtz, p. 113. PI. 11, fig. 4. 



1829 Aegina rosea Eschscholtz, p. 115. PI. 10, fig. 3. 



1879 Aegina rhodina Haeckel, p. 338. PI. 20, figs. 11-13. 



1908 Aegina lactea VanhofFen, p. 50. PI. 7, fig. 3. 



1908 Aegina brunnea Vanhoffen, p. 51. PI. 7, fig. 4. 



1909 Aegina alternans Bigelow, p. 74. PI. 17, fig. i. 



1953 Aegina citrea Russell, p. 467. PI. 28, fig. i. Text-figs. 308-10. 



Occurrence: Stns 76, 78, 100, 102, 151, 270, 276, 282, 290, 291, 298, 407, 677, 690, 697, 1370, 1371, 1374, 1575, 



1749, 2047, 2053, 2057, 2064, 2070. (For details of position, date, etc., see Table i, p. no.) 

 Most of these localities are in the Atlantic Ocean from the coast of Portugal (St. 2070) to South Georgia 

 (St. 151), but the species was also taken in the area south of Madagascar and farther east in the Indian 

 Ocean (St. 1749). All the localities are inside the regions, from which the species was known before. 

 It was taken at very different depths, e.g. at St. 100, west of the Cape of Good Hope, in hauls from 

 5-0 m. as well as from 1000-900 m. 



The number of tentacles and marginal lappets was counted in 60 specimens with the following 



results : 



No. of tentacles 3 4 5^ 



No. of specimens i 49 9 ' 



Distribution. Aegina citrea has its main distribution in the warm and temperate parts of the 

 oceans, but may also occasionally be carried as far north as the south coast of Iceland and south- 

 wards to the neighbourhood of South Georgia. In cold areas it only occurs in deep water, but in the 

 warm areas it may be met with at the surface, though there also it frequently occurs in the deep and 

 intermediate layers. 



