GASTROPODA (nUDIBRANCHIA). 
175 
NUDIBBANOEIA, 
PLEUROPHYLLIDIIDiE. 
Linguella (Blainv.), ex. typ. (in Brit. Mus.), is a Sancara (Bergh)^ 
certe, and ? = /S. quadrilateralis (Bergh) ; R. Bergh, in Semper’s Reis. 
Arch. Philipp, ii. p. 248. L. quadrilateralis, Pulo Pinang, iaira (Bergh), 
and punctilucens, sp. n., China Sea, described with anatomical notes, id. 
1. c. pp. 266-275, pis. xxxiv. & xxxv. fig. 1. 
Phyllidiid^. 
The peculiarities of this family recapitulated, and the known species 
enumerated ; R. Bergh, 1. c. pp. 377-380. 
Phyllidia varicosa (Lam.), elegans (Bergh), and Phyllidiella pustulosa 
(Cuv.) ; on their occurrence in various parts of the Philippines and 
Moluccas, id. 1. c. pp. 380-382 ; figured from life, pi. xxv. figs. 4-7. Male 
orgau'of the first figured ; id. J. Mus. Godeffr. viii. pi. xi. fig. 1. 
Phyllidiella nohilis (Bergh, 1869) described from specimens found at 
the Pelew Islands ; id. Yerh. z.-b. Wien, xxv. pp. 661 & 662. 
Fryeria rueppelli (Bergh, 1869), from the Red Sea, fully described, id. 
1. c. pp. 663-669, pi. xvi. figs. 5-iO. The disposition of the tubercles and 
pharynx is as in genuine Phyllidia, but the vent is lateral. 
Phyllidiopsis, g. n. Yent dorsal, as in Phyllidia, tentacles soldered in 
their whole length to their basis, as in Doridiopsis. Type, P. cardinalis, 
sp. n., Tonga. Id. 1. c. pp. 670-672, pi. xvi. figs. 11-15. 
Doriopsid.®. 
The only genus is Doriopsis (Pease, 1860) = Doridopsis (Aid. & 
Hanc., 1864) = Haustellodoris (Pease, 1871) = Rhacodoris (Morch, 
1863). External shape of Doris, but mantle soft and weak, its edges 
waved ; mouth small, without jaw or radula. Internal structure resem- 
bling that of Phyllidia ; penis armed with hooks; pericardial folds. To 
it, belongs also Doris limhata (Cuv.), from the Mediterranean. The 
known species enumerated, andD. Icrebsi (Morch), from the West Indies, 
tristis, sp. n., Philippines, and affinis, sp. n., Tahiti, described with ana- 
tomical notes. R. Bergh, J. Mus. Godeffr. viii. pp. 82-93, pi. vii. fig. 6, 
pi. X. figs. 22 & 23, pi. xi. figs. 3-23, and pi. xxxiii. fig. 9. The generali- 
ties repeated, and D. tristis, semperi, modesta, pellucida, pudihunda, 
macuUgera, and spiculata, spp. nn., all from the Philippines, shortly 
described ; id. in Semper ‘s Reis. Arch. Phil. ii. pp. 384-387. 
DoRIDIDAil. 
The history and characters of this family recapitulated ; id. 1. c. 
pp. 388-390. - 
Doris johnstoni 2iXi.di repanda (A. & H.) ; Macintosh, Mar. Invertebr. of 
