[27]

Spengel, Monogr. p. 370 f.

[28]

Cf. Spengel, Monogr. p. 363 f.

[29]

Bourne, J. Mar. Biol. Ass. (N.S.), i. 1889-90, p. 63.

[30]

This closely resembles T. grenacheri, but see Willey, op. cit. p. 285.

[31]

Haldeman, Johns Hopkins Univ. Circ. vi. No. 54, 1886, p. 45.