38 MALACOZOA. CEPHALOPODA. FORAMINIFEKA. 



or sinuous groove extending from tlie summit to the 



base ; and composed of two series of alternating cellules ; 



the aperture semilunar, on the inner side of each cellule. 



1. Textiddria ohlonga. Oblong Textularia. 



Shell oblongo-lanceolate, pointed, somewhat compressed, of 

 two alternate vertical series of horizontal, rather convex, de- 

 pressed, glossy, somewhat tuberculate olivaceons cellules. 

 Length half a twelfth of an inch, breadth about half the height. 



Found among sand sent by Mr. Alex. Mm^ray, m October, 

 1842, from Fraserburgh. 



Genus 8. Lagenula. 



Shell somewhat resembling a Florence flask, being 

 globose or ovate, with a more or less produced neck. 

 1. Lagenula lesvis. Smooth Lagenula. 



Shell ovato-claviform, smooth, glossy, bluish-white, having 

 an ovate body with a prolongation, gradually tapering into a 

 cylinder ; the larger end broadly rounded, the other with a 

 depression and central aperture. Length about the twelfth of 

 an inch. 



First found by me, in October, 1 842, adhering to fuci, and 

 among the byssi of Modiola barbata, on the Girdleness, at 

 Aberdeen. 



Serpula (Lagena) laevis ovalis. Walker, Test. Blin. Rar. PI. L f. 

 9. — Lagenula laBvis. Flem. Brit. Anim. 235. 



2. Lagenula reticiildta. Reticulated Lagenula. 



Shell ovato-globose, considerably compressed, highly glossed, 

 smooth, pellucid, with numerous opaque white internal reticu- 

 lar markings, bounding irregular areolar spaces ; the internal 

 cavity simple, the cells being only parietal ; the aperture ter- 

 minal, rather large, oval. Length a third of a twelfth, breadth 

 a fourth less. 



Found by me in November, 1842, among shells and coral- 

 lines, from the Bay of Aberdeen. 



Not finding any description agreeing with this species, I 

 have named it as above. 



To these may be appended tlie Dentalium glabrum of Mon- 

 tagu, the nature of which seems to be unknown. As it does 

 not agree with the Orthocersc, although some have placed it 

 among them, it may be here described under tlie name of 

 Coecalium, given to the genus by Dr. Fleming, in his Philosophy 

 of Zoology. Two other species have also occurred. 



