LAGENIDAE 157 



Brady does not appear to have met with typical L. acuta, Reuss, in the Challenger 

 material. He figures a specimen {nt supra) which he says is not typical and " might with 

 equal propriety be treated as a mucronate example of L. marginata ". His specimen was 

 from deep water in the South Atlantic, Challenger St. 332, 2200 fathoms. I think there 

 can be no doubt that his specimen is referable to L. marginata var. spinifera. 



Cushman figures under the name L. sacadus, Fornasini, a series of specimens from 

 deep water in the Pacific which are unquestionably the same as that figured by Brady, 

 though they exhibit great range in the width of the keel. They cannot be identified with 

 Fornasini's species (F. 1901 , NNI, p. 49, fig. 3), which is described as having a rounded 

 edge, with which description Fornasini's figure agrees absolutely. 



371. Lagena marginata var. striolata, Sidebottom (SG 234). 

 One station: 384. 



A single example resembling the South Georgia specimens, and Sidebottom's fig. 10 

 (S. 1912, etc., LSP, 1912, p. 408, pi. xviii, fig. 10). 



372. Lagena melo (d'Orbigny) (F 200) (SG 235). 

 Five stations: 175, 200, 384, 386; WS 482. 



Only a single specimen at each station, except St. WS 482, where the best specimens 

 were found. There is a great range in depth between 100 m. at St. WS 482 and 4773 m. 

 at St. 386. 



373. Lagena multicosta (Karrer). 



Fissurina multicosta, Karrer, 1877, KFJW, p. 379, pi. xvi b, fig. 20. 

 Lagena multicosta, Brady, 1884, FC, p. 466, pi. Ixi, fig. 4. 

 Lagena multicosta, Millett, 1898, etc., FM, 1901, p. 495, pi. viii, fig. 17. 

 Lagena multicosta, Heron-Allen and Earland, 1922, TN, p. 148. 



Two stations: 386; WS 403. 



A single specimen from each station is in close resemblance to Karrer's figure. 

 A second specimen from St. 386 is distinguished by a stout but short neck; in other 

 respects it appears to be referable to Karrer's species. Brady's specimen has basal spines 

 which are also indicated by Millett, but they are not shown in Karrer's original figure. 



374. Lagena orbignyana (Seguenza) (F 240) (SG 236). 

 Eleven stations: 170, 177, 383-6; WS 204, 403, 468, 469, 482. 



Frequent at Sts. 385 and WS403, rare or very rare elsewhere. Several very dis- 

 tinctive forms were observed. The true type of Seguenza, practically without neck, 

 occurs at St. 170. The same type but with all three keels very much extended, the middle 

 carina particularly, was found at Sts. 177, 384, 385, WS 403 and 482. It is identical 

 with L. orbignyana var. alata, Cushman (C. 1910, etc., FNP, 1913, p. 45, pi. xxiii, fig. i), 

 except that it lacks the pitted markings round the border of the face of the test. A third 

 form has an oval body with short produced neck, carinae narrow but thick, extending 

 to form costae on the neck. The intracarinal spaces are rough with a tendency to become 

 hispid, which is most marked at St. WS 468. It occurs also at Sts. 385, 386, WS 204 

 403 and 469. A fourth variety in which the carinae are inconspicuous, but the central 

 carina is produced as a wing up the sides of the neck, occurs at Sts. 383 and 385. 



