30 Moll. 
MOLLUSCA. 
Magilina, g. n. Near Magilus ; of small size, not included in corals, but 
fixed by its flattened base to marine bodies ; first whorl glossy, red, some- 
what compressed. Animal not known. M. serpuliforrais^ sp. n., V^lain, 
0. R. Ixxxiii. p. 285 ; Arch. Z. exp^r. vi. p. 105, pi. ii. figs. 16 & 17, St. 
Paul and Amsterdam Islands. [May perhaps belong to the Vermetidie.'] 
BuCCINlDiE. 
Chrysodomus crehHcostatus[-a\ tJnalaska, 100 fathoms, 5rwwwews,Nunivak 
Island, Behring Sea. virens, Kyska Harbour, and roseus, Arctic Ocean, 
spp. nn., Dali, P. Cal. Ac. 1877, separate print pp. 1 & 2. 
Fusus herniciensis (King), ehur (Morch) = mcehii (Dunk. & Metz.) and 
salini (Gray) = togatua (Morch), found off Norway at 80-600 fathoms ; 
Friele, N. Mag. Naturv. xxiii. [1876], and JB. mal. Ges. iv. pp. 161 & 162. 
Fusus moJinif Friele, and turgidulua, Jeffreys & Friele, N. Mag. Naturv. 
xxiii. and 1. c. p. 262, Northern Norway, 1120 and 290-400 fathoms ; 
spp. nn. 
Fusus islandicuSf Lov4n, = herniciensis (King) ; islandicus^ Gould, 
= stimpsoni (Morch) = curtus (Jeffr.) ; ehut\ Kobelt, nec Morch, mcehii^ 
(Dunker) = togatus (Morch) ; hreviculus is from Kamtschatka. Morch, 
J. de Conch, xxv. pp. 268-270, and Nachr. mal. Ges. 1877, p. 58. 
Fusus attenuatua (Jeffr., 1870), shell described, herniciensis (King), 
var. n., elegans, and var. n. injlata, sabini (Gray), living animal de- 
scribed, new localities for all three; Jeffreys, Ann. N. H. (4) xix. 
pp. 326 & 327. 
Fusus tortuosus (Reeve) ?, Hayes Sound and Dobbin Bay, Grinnell 
Land,'79® N. lat. ; E. A. Smith, Ann. N. H. (4) xx. p. 132. 
Fusus jeffr eysianus (Fischer), in the Mediterranean, often found in the 
stomach of Trigla ; Crosse & Fischer, J. de Conch, xxv. p. 99. 
Fusus : the known Californian species critically enumerated. F. 
{Chrysodomus) dims (Rve.) = sitchensis (Midd.), ambustus (Gould) = 
tumens (Casp.), luteo-pictus, new name for ambustus^ Carpenter & Cooper, 
and kobelti^ sp. n. ; Dali, P. Cal. Ac. 1877, March. 
Volutopsis callorhinus [callirrh-']^ sp. n., id. 1. c. p. 2, St. Paul Island, 
Behring Sea. 
Thatcheria^ g. n. ; shell angularly pyriform, solid, spire prominent, 
shorter than the aperture, many-whorled, whorls flattened above, strongly 
keeled at the periphery and contracted below ; aperture with a broad 
incurved sinus between the 'extremity of the last keel and the junction of 
the body- whorl ; basal canal wide and open ; columella smooth ; outer 
lip simple below the sinus. T. mirabilis] sp. n. (3 inches), Japan ; Angas, 
P. Z. S. 1877, p. 629, pi, liv. fig. 1. 
Pusionella recurvirostris, sp. n., Marrat, Q. J. Conch. No. 10, p. 180, 
Cape Blanco, W. Africa. 
Pusio kossmanni, sp. n., Pagenstecher, in Kossmann^s Zool. Ergebnisse, 
1. pt. 2, p. 53, fig. 27, Red Sea, founded on an imperfect young shell. 
Buccinum. Epidermis very variable in the same species ; Morch, J. de 
Conch, xxv. p. 287. 
Buccinum undatum (L.). The microscopical structure of its egg-cases 
