Report on Foraminifera. By F. W. Millett. 493 



p. 77, pi. xvii. fig. 738. L. gracilis (Will.) Jones, 1805, Palaxmt. 

 Soc, p. 189, pi. vii. fig. 6. 



This is usually a striated variety of L. clavata, but it assumes 

 many forms, as well illustrated by Brady in the ' Challenger ' Keport. 

 In the Malay Archipelago the majority of the specimens have an 

 affinity with the apiculata form of L. striata named by Seguenza 

 Amphorina Lyellii* and passage-forms exist in an unbroken series 

 from the one to the other. 



The examples figured show variations in the form of the test as 

 well as in the character of the sculpture, which ranges from that of 

 L. striata to that of L. sulcata. 



It is abundant at Station 30, and occurs at a few other Stations in 

 both Areas. 



Lagena quinquelatera Brady, plate VIII. fig. 11. 



Lagena quinquelatera Brady, 1881, Quart. Journ. Micr. Sci., n.s. 

 vol. xxi. p. 60. L. quinquelatera Brady, 1884, Chall. Kept., p. 484, 

 pi. lxi. figs. 15, 16. L. quinquelatera (Brady) var. inflata Chapman, 

 1893, Journ. E. Micr. Soc, p. 584, pi. vii. fig. 17. 



This is a rare form in the Malay Archipelago, although it occurs 

 at several Stations. The margins are subcarinate, and usually exhibit 

 small cavities placed at regular intervals ; some of the ' Challenger ' 

 specimens are faintly striate, and Chapman says of the gault variety 

 " aboral extremity minutely denticulate." 



Brady describes the species as being " compressed equally on five 

 sides," and classes it with the compressed Lagense, although he also 

 speaks of it as a modification of L. laevis. 



The Malay Archipelago examples find their nearest affinities 

 in L. gracilis, and might almost be described as a variety of that 

 species. 



The ' Challenger ' localities are, South Pacific, north of the Society 

 Islands, 2350 fathoms; and Southern Ocean, off Prince Edward's 

 Island, 50-150 fathoms. 



Compressed Lagenae. 



Group of Lagena laevigata. 



Lagena laevigata Keuss sp. 



Fissurina laevigata Eeuss, 1850, Denkschr. k. Akad. Wiss. 

 Wien, vol. i. p. 366, pi. xlvi. fig. 1. Lagena laevigata (Eeuss) 

 i'.alkwill and Millett, 1884, Journ. Micr., vol. iii. p. 80, pi. ii. fig. 6; 

 and trigonal form p. 81, pi. iii. fig. 6. L. marginata (Montagu) 

 Haeusler, 1887, Neues Jahrb. fur Min., p. 186, pi. iv. figs. 51, 52. 



* Forara. monotal. Mioc. Messina, 1862, p. 52, pi. i. fig. 40. 



