40 Prot. 
II. Protozoa. 
[1900] 
t Spiroplecta corrugata , Miocene and 
Pliocene (“trubi”), Bonfornello; Sil- 
vestri, Roma, Mem. Acc. Nuovi Lincei, 
22, (242, fig. 2). 
f Text ula ri a folium , Tertiaries, Biar- 
ritz ; Liebus, Wien, Jahrl). geol. Rcha. 
Aust , 56,(350, fig. 2). — T. gibboaa d’Orb., 
on tho dimorphism of ; also distribution, 
geogr. and geol. ; Sii.vestri, Roma, 
Mem. Acc. Nuovi. Lincei, 24, (225-242, 
9 figs.). 
\Tritaxia lepida , Tertiaries, Biarritz ; 
Liebus. Wien, Jalirb. Geol. RchsAnst., 
56, (359, fig. 7). 
Tubindla gen. n. (fain. Tihabdam- 
minidae), for T. perforata sp. n., Laysan ; 
Riiumbler, Zool. Jalirb., Syst., 24, (25- 
27, fig. 5). 
Tubinellinae subfam. n., Riiumbler, 
Zool. Jalirb. Syst., 24, (25). 
' \Vagulinopsia inversa (Costa), var. 
Carinata Silv., “ trubi,” Bonfornello ; 
Silvestui, Roma, Mem. Acc. Nuovi 
Lincei, 22, (251, fig. 5). 
' \Vnlvidina pennalula, “ trubi,” Bon- 
fornello ; Silvestri, Roma, Mem. Acc. 
Nuovi Lincei, 22, (244, fig. 1). 
Ineertae sedia. 
(Probably allied to Foraminifera.) 
fSpongiostromaccae ord. n. 
t Spongioatromidae fam. n. (35). 
Aphrostroma gen. n., (36) ; A. tene- 
rum sp. n., (36, pis. 1, 2, 3). 
| Chondroatromg gen. n., 45 ; C. pro- 
blematicum sp. n., (45, pi. 12, fig. 3) ; 
C. globulifenm sp. n. 46, pi. 12, figs. 
1,2); G. inlermixtum ep. n.,(47, pi. 13) 
G. renniculiferum sp. n. 48, ol. 14. fig 
1,2,3). 
t Malacostroma gen. n. 48) ; .¥. 
coneentricum sp. n. (49, pis. 15-17, 
20, 23, fig. 7) ; M. plumoaum sp. n. (50, 
pi. 18, fig. 1); M. undidosum sp. n. (51, 
pis. 18, fig. 2, 19). 
IfPyenoatroma gen. n. (38) ; V. denaiua 
(39, pis. 4, 5) ; P. spongilUfcrum sp. n. 
(10, pi. 0, fi«. 2). 
\Spongioatroma gen. n. (40) ; S. maeand- 
rinum sp. n. (41, pi. 6); S. bacilli f cram 
sp. n. (42, pi. 7, pi. 10, fig. 1) ; S. ovali- 
ferum sp. n. (43, pis. 8, 9, 10, fig. 2) ; 
S. gramdosum sp. n. (44, pi. 11) ; all 
from limestones (•* Viseen ”), Namur, 
Giiiticn, Bruxelles, Mem. Musee Beige., 
3, IV. (55, 23 pis.). 
Xenophyophora. 
Die Xenopliyophoren der Siboga-Ex- 
pedition ; Schulze, Resultats des ex- 
plorations zool., Botan., oc^an. geoL 
entreprises aux Indes Neerl. Or. 1899- 
1900, it bold du Siboga, publies par Max 
Weber. Leiden, Livr., 31, Monogr. 4 bis,. 
1906, (18, avec 3 pi.). 
Xenophyophora der amerikanischeni 
Albatros-Expedition 1904-05 ; Schulze,. 
Berlin, SitzBer. Ges. natf. Freunde, 
1906, (205-229, mit 1 Karte). 
Psammctta globosa sp. n. ; Schulze,. 
Res. exp. Siboga, Livr. 31, Monogr. A 
bis, (1—11, pi. 1 and pi. 2, figg. 1-10). 
(c) Heliozoa. 
Acanthocyatis hlepica sp. n. ; Iluir- 
feldt-K a. as , PI ank ton- U nte rsuchu ngen 
in norwegischen Seen. (Nforw.), (IV + 
199, mit 3 Taf. u. 9 Tab.), deutschos Res. 
(147-197). — A.perlyana , test (‘skeleton ’> 
and spines in, described ; Lord, Man- 
chester, Trans. Microsc. Soc., 1905, (di- 
ll, 1 pi.). 
Lithocolla apateinii sp. n. ; IIuitfeldt- 
Kaas, Plankton- Untersuchungen in nor- 
wegischen Seen, (Norw.), (iv -f- 199,. 
3 Taf. u. 9 Tab.), cleutsches lies. (147- 
197). 
(d) Radiolaria. 
Ueber die Mittel der Formbildung imi 
Radiolarienkbrper. (6. Mitt, fiber die- 
Tripyleen der ,,Valdivia“-Ausbente.). 
Hacker, Verh. D. zool. Ges., Leipzig,. 
16,(31-51). 
Acantliaria, various, chemical nature 
of skeletal substance ; Butsciili, Zool.. 
Anz., 30, (784-789). 
Acantliochiaaina bruhni. sp. n., Indian 
Ocean ; Popoi sky, Arch. Protistenkunde, 
7, (352). — A. plana vax. n. schotti, Indian; 
Ocean; Popofsky, Arch. Protistenkunde,. 
7, (351, fig. 8). 
Acanthometudac, Pacific Ocean, skele- 
tal structure ; AIielck, Zool. Anz., 30,. 
(754-762, 3 fig.). — A ., systematic account ; 
Popofsky, Arch. Protistenkunde, 7, (345- 
394, 4 pis.). 
Acanthometron erindeeum sp. n., 
Atlantic ; PoroFSKY, Arch. Protisten- 
kunde, 7, (354, fig. 12). 
Acanthophracta, from the Plankton- 
Expedition of the Ilumboldt-Stiftung, 
classification and systematic account;; 
