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Huvrrox.—Catalogue of the Worms of New Zealand. 327 
Sub-genus Vermilia, Lamarck. 
Operculum terminated by a calcareous prolongment, generally in the 
form of a simple cone, entire or truncated. 
V. Homsront, Quatrefages, l.c. II., p. 527. 
Branchie short, cirri 28 ; apex of the operculum irregularly spirovform ; 
body of 40-50 rings, anteriorly 7; sete elongated, curved, fringed ; laminæ 
serrated. Tube unknown. 
Sub-genus Galeolaria, Lamarck. 
Operculum terminated by a calcareous plate more or less flat, often 
composed of several juxtaposed pieces, carrying a large number of variously 
shaped spines, delicate, and elongate, disposed either on the circumference 
or on a more or less considerable tract of the operculum. 
V. uystrix, Morch, Rev. Serp., p. 24, pl. 21, f. 8,4. Quat., le., IL., p. 584. 
Bottom of operculum excentric, anterior border sloping, composed of 
eleven diverging pieces, posterior border erect, composed of hexagonal 
pieces, bearing externally a long spine, from whence the surface of the 
operculum is hidden by crowded prostrate spines. Spines subulate, the 
upper layer ornamented with about 20 scales. The rest naked, apices 
slightly bent. Tube sub-solitary, creeping, above with two approximated 
keels, often vanishing towards the aperture; lines of growth strong, 
unequal; aperture circular, entire. 
Genus Cymospira, Blainville. 
Operculum single, corneo-caleareous, more or less complicated ; base of 
the branchim spiral; horny lamine instead of uncini. 
C. INCOMPLETA, Quatrefages, l.c., IL., p. 543. 
Head indistinct ; branchial cirri very numerous, on a quinquespiral 
base; operculum (?); collar large, trilobed; body with about 100 rings, 
anteriorly seven; anterior setæ large, fringed, curved; laminæ finely 
crenulated. 
Genus Spirorbis, Daudin. 
Basal leaves of the branchie rolled in a circle or semi-circle; one or 
two opercula, not united together when two; tubes generally isolated, 
entirely attached, twisted into a flat or nearly flat spiral. 
S. zELANDICA, Gray. Dieffenbach’s New Zealand, Il., p. 295. 
Tube reversed, whorls two or three, rapidly enlarging ; the last with 
three spiral ridges, the middle rib most prominent. 
