96 TETHYS—POLYNESIAN. 
A large, handsome species, with ample swimming lobes, large 
mantle provided with a conspicuous central tube and an uncommonly 
long excurrent siphon. Angas reports it from Port Jackson, but 
the identity of his specimens with the type collected at Tahiti by 
Lesson, is open to grave doubt. See under 7. angasi Sowb. 
T. putmonica Gould. PI. 18, fig. 28. 
Length six inches; height two inches. Body oblong, posteriorly 
sacciform, with a short, distinct prolongation of the foot backwards. 
Color bronze-green, coarsely reticulate with dark veins; siphonal 
aperture small; head obtuse, slightly bilobate; anterior tentacles 
short, ear-shaped ; cervical tentacles acutely conical, faintly annulate. 
( Gid.). 
This animal bears a general resemblance to A. tongana of Quoy 
and Gaimard; but their figure shows the ruffled posterior disk 
peculiar to the subgenus Dolabella, no traces of which are apparent 
in this species. (Gild.). 
Tutuilla, Samoa Islands. 
Aplysia pulmonica GouLp, U. S. Exploring Exped., p. 228, fig. 
268 (1852). 
The more essential structural characters of this species are un- 
fortunately unknown. Compare T. tryoniana and T. keraudrenii. 
Var. TRYONIANA Pilsbry, n. v. Pl. 57, figs. 54, 55, 56, 57. 
Length (of an alcoholic specimen) about 13 cm. Body of ample 
width. Buccal lobes and tentacles as usual, the later stout-conic, 
near together. Swimming lobes arising at about the anterior third, 
long, very ample, united behind at their junction with foot; ante- 
rior insertions widely separated. Mantle large, with a minute sub- 
median pore on a very low, hardly noticeable papilla, surrounded 
with short black wrinkle-rays, star-like. Free right border of 
mantle wide, abruptly narrowed toward the posterior end, excised, 
and terminating in a fold forming a well defined excurrent siphon. 
Genital orfice and groove as usual, the latter deep with overlap- 
ping left margin. Orifice of opaline gland a large pit about 11 mill. 
behind genital pore. 
Color (of alcoholic specimen) externally a dirty light olive, much 
and irregularly clouded and mottled with black on the anterior half, 
less so posteriorly ; with a crinkly-reticulation of black throughout. 
