344 Messrs. W. K. Parker and T. R. Jones on the 



(A,d.) P. 520. "Vermiculum intortum." This is Walker's 

 fig. 1. Montagu felt much hesitation in separating it from 

 Linne's S. Seminulum. 



(A. e.) P. 521. "Vermiculum subrotundum." See above, 

 p. 336. 



Maton and Reckett, in the ' Linnaean Transact./ 1807, 

 vol. viii. p. 245, referred Vermiculum intortum, Montagu, and 

 Serpula ovalis, Adams (Linn. Trans. 1800, vol. v. p. 4. pi. 1. 

 f. 28-30), to Linne's Serpula Seminulum. They also united 

 Montagu's Vermiculum bicorne and V. perforatum, terming it 

 S. bicornis. Further, they expressed their doubt whether S. 

 Seminulum, S. subrotunda, S. oblonga, and S. bicornis ought not 

 to be considered rather as varieties than as distinct species. 



Prof. Williamson (Monogr. p. 81) refers M. subrotunda, Mont., 

 to M. trigonula, Lam.; but in this determination we entirely 

 differ from him. 



(B.) P. 522. " Vermiculum lacteum." Polymorphina lactea. 

 See p. 336. 



(Co.) P. 523. "Vermiculum striatum." Serpula {Lagena) 

 sulcata of Walker and Jacob, according to Kanmacher. Mon- 

 tagu, by following Turton, missed the name applied by Jacob, 

 and gave another. See p. 336. 



(C. b-d.) Pp. 523 and 524. " Vermiculum globosum," " V. 

 lajve," and "V. marginatum." Montagu thus termed those 

 Larjence which remained unnamed by Kanmacher. 



(C. e.) PI. 14. f. 3, p. 525. "Vermiculum perlucidum." A 

 six-ribbed variety of Lagena sulcata, Walker. From Seasalter 

 (Whitstable Bay). 



(C./.) PI. 14. f. 2. p. 526. "Vermiculum squamosum." A 

 reticulate and common variety of the globose Entosolenian La- 

 gena;. From Seasalter. 



(D. a.) PI. 6. f. 4, p. 197. " Nautilus Radicula." This is di- 

 stinct from the specimen figured at pi. 14. f. 6, which is a Cla- 

 vulina (see p. 350). Montagu evidently felt the difficulty of 

 placing the two together. Fig. 4 represents a specimen from 

 Sandwich ; and, since it is described as being of an " opaque 

 brown" colour, it was possibly a fossil specimen. This elegant 

 smooth variety of Nodosaria is common in the London Clay, but 

 wanting in our recent British fauna. The regularity of form 

 and smoothness of surface vary indefinitely among the recent 

 and fossil congeners of N. Radicula ; and indeed, at page 86 of 

 the Supplement, Montagu refers to these " numerous varieties." 

 (D. b.) PI. 14. f. 4, p. 198. " Nautilus jugosus." A tapering 

 and slightly curved form of Nodosaria Raphanus, with the septal 

 lines constricted. This specimen was " received from Mr. Boys," 

 and was probably derived from the Thanet Sands or the London 



