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Art. XXXIV.—List of the New Zealand Cirripedia in the Otago Museum.
[Read before the Otago Institute, 8th October, 1878.]
1.Balanus Decorus, Darwin, Monograph of the sub-class Cirripedia, Balanidæ, p. 212, pl. 2, f. 6.
Dunedin, generally attached to the peduncle of Boltenia. The Museum also contains specimens from South Australia.
2.Balanus Amphitrite, var. variegatus, Darwin, l.c., p. 240, pl. 5, f. 2. Dunedin, on seaweed and shells.
3.Balanus Porcatus, Da Costa. Darwin, l.c., p. 256, pl. 6, f. 4. Campbell Island, on rocks.
4.Balanus Vestitus, Darwin, l.c., p. 286, pl. 8, f. 3. Stewart Island, on shells.
5.Tetraclita Purpurascens, Wood. Dana, l.c., p. 337, pl. 11, f. 1b. Wellington and The Bluff, on rocks.
All the New Zealand specimens that I have seen are like fig. 1b of Darwin, which is probably the Conia depressa of Gray (Dieffenbach's New Zealand, II., p. 269). The Museum also contains specimens from Sydney, which are like fig. 1a of Darwin, as well as some like fig. 1b.
6.Elminius Modestus, Darwin, l.c., p. 350, pl. 12, f. 1. Auckland, on rocks, abundant.
7.Elminius Sinuatus, sp. nov.
Smooth, conical or depressed; parietes of each valve with two broad rounded folds, and faint transverse striations; white; sutures always distinctly defined. Scuta with the occludent margin smooth; adductor ridge obsolete; basal margin longer than the tergal margin. Terga with a long spur continuous with the scutal margin; crest for depressor muscle prominent and rounded.
Wellington, on shells.
Although the opercular valves are almost identical with those of E. modestus, the wall valves are so different and so constant that I cannot doubt the distinctness of the two species.
8.Elminius Plicatus, Gray. Dieffenbach's New Zealand, II., p. 269; Darwin, l.c., p. 351, pl. 12, f. 2.
Auckland and Dunedin, on rocks, abundant.
9.Elminius Rugosus, sp. nov.
Rugged, deeply folded, the folds of the parietes often meeting and growing together, conical, sutures only distinct in young shells.
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Dirty white or greyish. Scuta with a prominent adductor ridge; the articular furrow deep and strongly grooved; basal margin larger than the tergal margin. Terga stout, the articular ridge straight; carinal and basal margins confluent; spur short and broad.
The Bluff, on rocks, not common.
Distinguished from all varieties of E. plicatus by the straight articular ridge.
10.Coronula Diadema, L. Darwin, l.c., p. 417, pl. 15, f. 3. Waikouaiti, on a whale.
There are also in the Museum specimens from South Australia and Sydney.
11.Chamæsipho Columna, Spengler. Darwin, l.c., p. 470, pl. 19, f. 3. Dunedin, on rocks and shells, abundant.
There are also in the Museum specimens from Sydney.
12.Lepas Hillii, Leach. Darwin, l.c., Lepadidæ, p. 77, pl. 1, f. 2. Wellington and Dunedin, on floating timber.
13.Lepas Pectinata, Spengler. Darwin, l.c., p. 85, pl. 1, f. 3. Auckland, on Spirula lævis, common.
14.Lepas Australis, Darwin, l.c., p. 89, pl. 1, f. 5. Dunedin, on sea-weed.
15.Lepas Fascicularis, Ellis and Solander. Darwin l.c., p. 92, pl. 1, f. 6. Dunedin, on seaweed, North Cape on Velella pacifica.
16.Scalpellum Villosum, Leach. Darwin, l.c., p. 274, pl. 6, f. 8. Dunedin, on rocks. Mr. R. Gillies. Mr. Darwin gives no certain habitat for this species.
17.Pollicipes Spinosus, Quoy and Gaimard. Darwin, l.c., p. 324, pl. 7, f. 4. Wellington and Dunedin, on rocks.
18.Polliceps Darwini, sp. nov.
Capitulum with one or more whorls of valves under the rostrum. Scuta triangular, as broad as high, not reaching half-way up the terga. Terga oval, elongated, more than twice as long as broad. convex. Carina curved, internally deeply concave, reaching more than two-thirds of the length of the terga, and with its apex close to the terga. Rostrum short and broad, much less than half the length of the carina. Scales of the peduncle unequal and unsymmetrically arranged.
Dunedin, on rocks. Mr. A. Montgomery.
Easily distinguished from P. spinosus by the projection of the terga beyond the scuta, and from P. sertus by the short rostrum, and the short rostrum and the apex of the carina not projecting.
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Appendix.
The following additional species are said to occur in New Zealand:— Balanus trigonus, Darwin, l.c., p. 223.
Coronula balænaris, Gml. L. balænaris, Gray, in Dieffenbach's New Zealand, II., p. 269.
Tubicinella trachealis, Shaw. Gray, in Dieffenbach's New Zealand, II., p. 269.
Anatifa elongata, Quoy and Gaimard, Voy. Astrol. III., p. 635, pl. 93, f. 6. Darwin, l.c., p. 374.
Bay of Islands.
Anatifa tubulosa, Quoy and Gaimard, l.c., III., p. 643, pl. 93, f. 5. Alepas tubulosa, Darwin, l.c., p. 169.
Tolaga Bay, attached to a living Palinurus.
Pollicipes sertus, Darwin, l.c., p. 327.