36 SIPHONARIID®. 
South Africa. India. Phillipines. Australia. West Coast of South 
America, Pacific Islands. 
S. obliquata, Sowerby; Reeve, Conch, Ic, f. 12; S. scutellum, 
Deshayes. Shell ovately oblong, rather depressed, radiately crookedly 
ridged, vertex uncinate. Ash-brown (Reeve.) 
Dunedin. Chatham Islands. 
This is a large species flattened on the left side. The vertex is 
rarely uncinate. 
S. sipho, Sowerby; Reeve; Conch., Ic., No. 9; S. exigua, Sow. ; 
S. crebricostata Nuttall; S. albicans, zealandica, acuta, punctata, and 
plicata, Quoy and Gaimard ; S. tnculta, Gould. Shell somewhat acutely 
conical, balanus-shaped, variously radiately ribbed and ridged ; nbs and 
ridges opaque white ; interstices purple brown. (Reeve.) 
Philippine Islands. Indian Archipelago. Mauritius. Tonga. 
Chatham Islands. Auckland to Dunedin. 
This common species is very variable in its form and colour. Pro- 
bably the next is identical with it. 
S. cancer, Reeve ; Conch, Ic., f. 7. Shell somewhat oblong-ovate, 
convexly depressed, very irregular, radiately ribbed ; ribs strong, rude, 
sub-corrugate, the three next the siphon distant. Dull purple brown.— 
(Reeve. ) 
Cuming says that this species is from Formosa (P.Z.S., 1865, 
D: 197 -) : 
S. australis, Quoy, Zc, ii., p. 329, Al 25, f. 32-34. Elongato- 
ovate, rather convex, with about thirty radiating ribs, apex posterior ; 
ribs unequal, undulating, yellowish white ; the grooves reddish brown ; 
interior flulvous, marked with white and reddish brown on the margin. 
Length, 7 lines; breadth, 5 lines; height, 3 lines. (Quoy.) 
Cooks Strait, on sea-weed. 
S. spinosa, Reeve; Conch., Ic., f- 32. Shell ovate, rather 
depressed, apex laterally uncinate, radiately ribbed, nbs rather narrow, 
profusely squamately spined. Yellowish white.—/( 7eeve. ) 
S. redimiculum, Reeve; Conch., Ic, fig. 24? Shell rather 
depressed, oblong ; apex posterior, twisted to the left. With small, 
rather distant and somewhat undulating, radiating ribs, crossed by fine 
concentric strie. Interior dark purple; exterior covered by a brown 
horny epidermis. 
Length, ‘9 ; breadth, *65. 
Auckland Islands. 
The apex is not quite so much twisted as in Reeve’s figure, and the 
ribbing is of a different character, but these may be errors of the 
artist. 
FAMILY—GADINIIDE. 
Head distinct, flattened ; tentacles expanded, funnel-shaped. Pul- 
monary cavity with a single gill placed obliquely across the back of 
the neck. Foot flat, thin, simple. 
