64 DISCOVERY REPORTS 



Aeginura grimaldii Maas 1904 



1904 Aeginura grimaldii Maas, p. 38. PI. 3, figs. 19-28. 



1905 Aeginura weheri Maas, p. 77. PI. 11, fig. 73; PI. 12, fig. 76; PI. 14, figs. 90-9. 

 1936 Aeginura lanzerotae Thiel, p. 86. Fig. 18. 



1953 Aeginura grimaldii Russell, p. 472. Text-figs. 311-12. 



Occurrence: St. 287. 19. viii. 27. 02° 49' 30" S, 09° 25' 30" W. Net: TYF 800-1 ooo(-o) m. i specimen. 



St. 298. 29. viii. 27. 13° 01' 45" N, 21° 34' 4s" W. Net: TYF 900-1 20o(-o) m. i specimen. 



St. 1580. 27. iv. 35. 08° 44' 36" S, 41" 50' 18" E. Net: TYFB 1300-750 m. i specimen. 



St. 1585. I. V. 35. 00° 06' S, 49° 45' 24" E. Net: TYFB 1400-700 m. 2 specimens. 



St. 1587. 3. V. 35. 06° 05' N, 52 00' E. Net: TYFB 1250-800 m. 2 specimens. 



St. 1600. 25. X. 35. 12° 43' 18" S, 00° 20' 12" E. Net: TYFB 400-330 m. 2 specimens. 



Stns 287, 298 and 1600 are off the west coast of Africa, and Stns 1580, 1585 and 1587 off the east 

 coast between Zanzibar and Somaliland. The species was previously known from the same areas. 



Distribution. Widely distributed in the deep layers of all the oceans, except in the Mediterranean 

 and in arctic seas. 



Solmundella bitentaculata (Quoy & Gaimard 1824) 

 Occurrence: Stns 17, 100, 102, 107, 151, 270, 275, 276, 282, 303, 304, 305, 306, 311, 313, 319, 320, 321, 323, 325, 

 334. 335. 336, 337. 342, 343. 344. 353. 354. 355. 356, 357. 358. 589. 66i, 690, 1370, 1373, 1606. WS 30, WS 44, 

 WS 54, WS 67, WS 69, WS 139, WS 140, WS 141, WS 151, WS 160. (For details of position, date, etc., see 

 Table i, p. no.) 



A.11 these localities are south of the equator, several of them are off the west and south coasts of Africa, 

 one (St. 690) is near Cape San Roque in Brazil. Moreover, the species was taken in numerous localities 

 in the area between the South Sandwich Islands and the Falkland Islands, and it was found in one 

 locality west of Graham Land (St. 589). The species has been recorded from all these regions. 



This well-known and widely distributed medusa was previously known to occur at very different 

 depths; as far as the present collection is concerned the bathymetrical distribution may be sum- 

 marized as follows: 



Approx. depth of hauls (m.) loo-o 250-100 500-250 750-500 1000-750 



No. of hauls 10 15 26 6 3 



Accordingly the species may be found everywhere between the surface and depths of about 1000 m., 

 though it seems mainly to occur between 100 and i;oo m. 



Distribution. Widely distributed in all the great oceans, particularly common in the southern 

 hemisphere. 



Family SoLMARlDAE sensu Bigelow 1909 

 Narcomedusae without gastric pockets, the genital products being developed either as thickenings or 

 as diverticula in the oral wall of the central stomach ; with or without peripheral canals and otoporpae. 



This is the definition of the family given by Bigelow (1909, p. 81) as distinct from the Cuninidae 

 and Aeginidae, and I fully agree with this distinction. In a subsequent paper (1918, p. 394) Bigelow 

 referred to the family under the headline: Solmaridae Haeckel, sensu Maas 1904, Bigelow 1909, Mayer 

 1910; but the diagnosis given by Maas (' Narcomeduses a antimeres nombreux, sans nombre precis; 

 systeme entodermique simple, sans canaux peripheriques ') would exclude the genus Pegantha. 



The family comprises two genera: Solmaris Haeckel and Pegantha Haeckel. In 1918 (p. 394) 

 Bigelow was inclined to regard Polycolpa Haeckel as a third genus distinct from Pegantha; I have 

 recently (Kramp 1955, p. 278) expressed the opinion that the genus Polycolpa should be abandoned. 



