MARSHALL: ADDITIONS TO ‘‘ BRITISH CONCHOLOGY.” 355 
A. cycladius S. Wood.—Between the Hebrides and Feerces, 
570 f. (‘Triton’) !; West Orkneys, 45 f. Jeffreys’ remarks 
as to Axinus being without teeth’ must now be qualified, 
as this species has them. Wood’s figure certainly shows 
no teeth, but his description says “one cardinal and no 
lateral,” while Jeffreys’ figure* shows two teeth, apparently 
cardinals, and he states on the next page, “ one cardinal 
and two laterals.” Another divergence between these two 
authors occurs in the latter calling his shell ‘ solidula,” 
while Wood describes his as a ‘delicate and fragile shell.” 
Still, there appears to be no doubt that they were both 
describing the same species. The Crag form is “nearly a 
quarter of an inch,” but the recent one does not exceed a 
line. It is everywhere rare. 
Jeffreys’ figure (Brit. Conch., vol. 5, pl. 32, fig. 3) is cor- 
rect as an outline, and so is Sowerby’s of Poromya subtri- 
gona (pl. 9, fig. 1*) ; but his supplementary figure, as Ked/za 
cycladia (pl. 25, fig. 15), is too obliquely oval. Jeffreys’ 
original figures in the “Annals” for 1858 are very good. 
A. eumyarius M. Sars has been dredged between the 
Hebrides and Ferces by the “ Triton.” 
Diplodonta rotundata Mont.—Low water to 20 f. 
Gyamium Phil.—Mr. Edgar Smith’ disputes the correctness 
Gri Ore letreyse conclusions) (But, (Conch. velyk2,)) pp: 
257-8) as to the distinctness of this genus from Turtonza 
F. & H. They are in direct issue as to the name and 
habitat of Philippi’s species, and as to the ligament in that 
species being internal or external; and they both write so 
positively that it is impossible for a third party to come to 
a conclusion concerning them. 
Cardita aculeata Poli.—A valve has been dredged by the 
Rey. Frank Knight in the Kyles of Bute, in 50 f., and was 
1. Brit. Conch., vol. 2, pp. 245-6. 
2. Ann. and Mag. Nat. Hist., ser. 3, vol. 1, pp. 42-3, pl. 2, fig. 1, 1858. 
3. J. of Conch,, vol. 5, pp. 42-3, 1886. 
