Echinothrix turcarum, Schynv.

Echinothrix turcarum (Schynv.), Agassiz, Rev. Echini, Mem. Mus. Comp. Zool., iii., p. 416, pl. Ilia, fig. 3.

Six specimens, in the two largest the spines are of a uniform dark colour, whilst the four smaller examples have the spines page 156annulated with from five to nine whitish bands a little narrower than the intervening dark bands, except in the youngest speci-mens, which have them about equal in width.

Native name, "Vanna."

Heterocentrotus mamillatus, Klein.

Heterocenirotus mamillatus (Klein), Agassiz, Rev. Echini, l. c, iii., p. 428.

Only a few spines of this species were obtained; there is a fine specimen in the Museum Collection, from the Ellice Group, collected and presented by Dr. Luther, of H.M.S. "Dart."

Native name, "Fatuki."

Echinometra Lucunter, Leske.

Echinometra lucunter (Leske), Agassiz, Rev. Echini, iii., l. c, p. 431. One specimen.

This species is exceedingly common on the outer reefs and in the lagoon.

Echinometra oblonga, Blainv.

Echinometra oblonga (Blainv.), Agassiz, Rev. Echini, l. c, iii., p. 433.

Nine specimens were obtained. Common on the outer reefs and in the lagoon.

Echinus angulosus, Leske.

Echinus angulosus (Leske), Agassiz, Rev. Echini, l.c., i., p. 122; id. iii., p. 489.

There are two very small specimens which I refer to this species, the largest example is only 12mm. in diameter.

Laganum depressum, Less.

Laganum depressum (Less.), Agassiz, Rev. Echini, l.c., iii., p. 518.

A very fine series consisting of sixteen specimens, found in company with the following species.

Maretia planulata, Lam.

Maretia planulata (Lam.), Agassiz, Rev. Echini, iii., l.c., p. 570.

Forty-eight examples, exhibiting great variation in colour; about one half of the specimens are of a uniform yellowish-white, the rest are more or less streaked or spotted with brown.

Dredged in abundance in thirteen fathoms of water in the lagoon, one mile west of the Mission Church.