Systematik. 25 
Ps. lobatum, Ps. molle, Ps. nigrum, Ps. obesum, Ps. ordinatum, Ps. 
ovatum, Ps. paessleri, Ps. pantherinum, Ps. pedunculatum, Ps. pyri- 
jorme, Ps. radiatum, Ps. retiforme, Ps. rude, Ps. solidum, Ps. spaul- 
dingi, Ps. stelliferum, Ps. subviride, Ps. triplex. 1. c. p. 1471. 
Pterygascidia mirabilis. 1.c. p. 1397. 
Pterygascidiidae nov. fam. (Syn. Corellascidiidae Slgr. part.) 1.c. p. 1396. 
Ptychobranchia Ord. ].c. p. 1316. 
Pyrosoma agassizi, P. aherniosum, P. atlanticum, P. giganteum, P. minimum, 
P. operculatum, P. triangulum, P. verticillatum. Neumann. — P. 
spinosum. Neumann, Farman. 
Pyura Mal. (Syn. Tethyum Boh. part.; Ascidia L. part.; Vorticella, part.; 
Cynthia Sav. part.; Baltenia Sav. part.; Lais Gistel; Klephtes Gistel; 
Halocynthia Verr.; Herdmania Lah.; Rhabdocynthia Herdm.; Forbe- 
sella Herdm.; Forbesia Lac. Duth. u. Del.) arctica, arcuata, arenosa, 
P. aripuensis, P. aurantium, P. bouvetensis, P. breviramosa, P. castaner- 
jormis, P. cataphracta, P. cerebriformis, P. chazaliei, P. chilensis, P. 
comma, P. corallina, P. crinitistellata, P. deani, P. discrepans, P. 
dura. 1.c. p. 1339. — P. echinata. Hartmeyer (1, 3). — P. coriacea, 
. coerulea, P. discoveryi, P.erecta, P. fissa, P. formosa, P. galbana, 
. gangelion, P. georgiana, P. haustor, P. hilgendorfi, P. hispida, 
. hupferi, P. jacatrensis, P. ianthinoctoma, P. igaboja, P. irregularis, 
. japonica, P. jokoboja, P. karasboja, P. laevigata, P. lanka, 
. latisinuosa, P.lurida, P. legumen, P.].var. cunninghami, P.]. var. 
delfini, P.1. var. ohlini, P. lignosa, P. lutea, P. macrosiphonus, P. me- 
lacactus, P. michaelseni, P. morus, P. mirabilis, P. molguloides, P. 
mollis, P. momus, P. multiradicata, P. okai, P. ovifera, P. ovata, P. 
owstoni, P. pachydermatina, P. paessleri, P. pallida, P. papillosa, P. 
riseara, P. pallida £. typica, P. p. f. ceylonica, P. p. f. formosa, P. p. 
f. grandis, P. p. f. japonica, P. p. f. papietensis, P. p. f. tenuis, P. 
pontex, P. papillosa, P. pectinicola, P. polycarpa, P. pulla, P. riseana, 
P. ritteri, P. roretzi, P. rosea, P. roulei, P. rubrilabia, P. sacciformis, 
P. salebrosa, P. sanderi, P. sansibarica, P. subfusca, P. scutellata, P. 
scotti, P. setosa, P. sigillata, P. socialis, P. solanoides, P. spinifera, P. s. 
var. intermedia, P.roseola nom. nov. P. fructuosa nom. nov., P. spinosa, 
P. squamulosa, P. stolonifera, P. stubenrauchi, P. subfusca, P. sub- 
uculata, P. s. var. suteri, P. superba, P. tesselata, P. thompsoni, P. 
torpida, P. transversaria, P. t. var. monaarensis, P. trita, P. turqueti, 
P.nistiae, P. vanhöffeni, P.villosa. Hartmeyer (1), p. 1341—42 u. p. 1483. 
Pyuridae Hartm. (Syn. Cynthiidae Lae. Duth. part.; Haloeynthiidae 
Hartmr.). 1.e. p. 1329. 
Rhizomolgula arenaria, Rh. gigantea, Rh. intermedia, Rh. sitteri, Rh. war- 
pachovski. 1.c. p. 1321. 
Rhodosoma Ehrbg. (Syn. Phallusia Sav. part.; Schizascus Stimps. Pera 
M‘Don., Peroides M‘Don., Chevreulius Lac. Duth., Corellascidia 
Hartmr.) callense, Rh. ceylonicum, Rh. herdmani, Rh. papillosum, Rh. 
seminudum, Rh. verecundum. 
Rhodosomidae Fam. Hartmr. (Syn. Corellidae + Corynascididae part. Lah.; 
Corellinae + Aseidiinae part. + Cioninae part. Herdm., Corellidae — 
Ko I 
