14 Echin . 
V. Echinoderma. 
[1911] 
Schaxel, Julius. Das Zusammen- 
wirken der Zellbestandteile bei der 
Eireifung, Furchung und erster Organ- 
bildung der Echinodermon. Arch. 
Mikr. Anat. Bonn 76 1911 (543-607) 
pis., xixr-xxiii. Text figs. [03, 6 ; 15, 3, 
4, 6.] 202 
Schaxel, J. Plasmastrukturen, 
Chondriosomen und Chromidien. Anat. 
Anz. Jena 39 (337-353) [15, 3 ] 203 
Schoendorf, Friedrich. Das Profil 
des Oberen Jura am Bahnhof Linden- 
Fischerhof bei Hannover. Hannover 
Jahresber. Niedersachs. geol. Ver. 2 
1909 (97-125). [27, B, iii, c, 1.] 204 
Schoendorf, F. Die Astoriden dor 
deutschon Trias. Hannover Jahresber. 
Nieilersachs. geol. Ver. 1910 1910 (90- 
110). [27, B, iii, e; 31, D.] 205 
Seale, Alvin. The fishery resources 
of the Philippine islands. Part 4. 
Miscellaneous marine products. [Tre- 
pang (Holothurioidea) pp. 283-289. 
pis. i, ii. Check list of holothurians, 
pp. 312-317.] Philippine J. Sci. 
Manila D. Gen. Biol. Eth. Anthrop. 
6 1911 (283-320) pis. i-xii. [19, 11 ; 
27, A, ii, 31, B.] 206 
Sellier, J. Recherches sur les 
ferments proteolytiques des Invert6bres. 
Arcachon. Bull. Soc. Sci. Station, biol. 
13 07-209. [11, 7.] 207 
Shearer, Cresswell, De Morgan, 
Walter and Fuchs, H. M. Preliminary 
notice on the experimental hybridiza- 
ion of Echinoids. Plymouth J. Mar. 
Biol. Ass. n. ser. 9 part 2 (121-141) 
Text-figs. [15, 5, 7, 8.] 208 
Simionescu, Joan. Sur quelques 
points fossiliferes du Trias de Dobrogea. 
Ann* Univ. Jassy. 1910 6(124-128). [27, 
B, iii, o.] 209 
Simpson, J. C. A note on a spocimen 
of Pelagothuria from the Soyoholles. 
Nature London 80 1909 (88). [27, A, 
iii ; 31, B.] 210 
Simroth, H. Ueber mutmasslichen 
Raumparasitismus einer Ophiure in 
einer Schnecke. Leipzig SitzBer. natf. 
Ges. 37 (1910) 1911 (42-40). [19, 8.] 
211 
Smith, John. Carboniferous Rocks 
of tho Solway, Scotland. Glasgow 
Trans. Geol. Soc. 14 (30-59) pis. i-viii. 
[27, B, iv, e.] 212 
Sokolow, B. Liste des Gregarines 
decrites depuis 1899. Zool. Anz. 
Leipzig 38 1911 (304-314). [19, 8; 
31, B.] 213 
Springer, Frank. On a Trenton 
echinoderm fauna at Kirkfield, Ontario. 
Mem. No. 15. Canada Dept. Mines 
Geol. Surv. 1911 (1-70) pis. i-v. 
[07, 5 ; 27, B, iv, h ; 31, F. K.] 214 
Springer, F. The ermoid fauna of 
the Knobstone formation. Washington 
D.C. Smithsonian Inst. Proc. U. S. 
Nation. Mus. 41 1911 (175-208). [27, 
B, iv, e; 31, F.] 215 
Springer, F. Some now American 
fossil crinoids. Cambridge Mass. 
Mem. Mus. Comp. Zool. Harvard Coll. 
25 1911 (117-161) pis. i-vi. [27, B, 
iii, b, i ; iv, f ; 31, F.] 216 
Stefanini, Giuseppe. Sulla strati- 
graphia e sulla tettonica dei terreni 
miocemci del Friuli. Publ. 31 Ufficio 
Idrographico R. Magistrato alle Acque 
Venezia 1911 (1-32) pi. i. [27, B, ii, d.] 
217 
Stefanini, G. Osservazioni sulla 
distribuzione geografica, sulle origini e 
sulla filogenesi degli Scutellidae. Roma 
Boll. Soc. geol. ital. 30 1912 (739-754). 
[23, 10 ; 27, A, i; B, ii, a ; 31, C.] 
218 
Stefanini, G. Sugli Echini terziari 
dell’ America del Nord. Roma Boll. 
Soc. geol. ital. 30 1912 (677-71 4) pi. xxii. 
[03, 3 ; 27, B, ii, a ; 31, C.] 219 
Stefanini, G. Note Echinologiche. 
I-IV. Riv. ital. paleont. Perugia 17 
fasc. 4 1912 (1—1 6) pi. v. [23,10; 31, C.] 
220 
Stefanini, G. Di alcune Arbacia 
fossili. Riv. ital. paleont. Perugia 17 
1912(51-52).. [27, A, ii; 31, C.] 221 
Stefanini, G. Contributo degli studi 
oohinologici ad alcuni problemi di 
Paloogoografia. Riv. geogr. ital. 
Firenze 19 1912 (1-12). [27, B, i.] 222 
Steuer, Adolphe. Planktonkunde. 
8vo. Leipzig (1-723). [15, 5.] 223 
Sussbach, Sfiegmund] und Breckner, 
Afndreas]. Die Seeigel, Seesterne 
und Schlangensterne der Nord- und 
Ostsee. Wiss. Meeresunters. Kiel 
Abt. Kiel N. F. 12 1911 (167-300) 
3 Taf. [19, 3 ; 27, A, v ; 31, C, D, E.] 
224 
Tennent, David Hilt. . A hetero- 
chromosome of male origin in echi- 
