e Livr. (Monogr. XLIIa) L. Déderlein. Die gestielten Crinoiden: der sae ete Mit 
deh. 
23 Tafeln und 12 Figuren.im Text .. f 8— 
Livr. (Monogr. IX) Aibertine D. Lens and "Thea van Riemsdijk. The ‘Siphonophores 
of the Siboga Expedition. With 24 plates and 52 textfigures. . Bes eho) 
Livr. (Monogr. XLIX'a) M. M. Schepman. The: Prosobranchia of the Siboga Expedition, 
Part I. Rhipidoglossa and Docoglossa, with an Appendix fe Prof. R. BERGH. 
With 9 plates and 3 textfigures. . - wat ga 4poO ss 
Livr. (Monogr. XL) J, C. C. Loman. Die “Pantopoden der Siboga-Expedition. “Mit 5 ‘ie ; 
Tafeln und 4.Figuren im Text. wm 6.25 spi 
Livr. (Monogr. LVIc) J. E. W. Ihle. Die Appendictlarien der Siboga: Expedition. ‘Mit 4 sigiotie ss 
Tafeln und 10 Figuren.im Text . . ean 4.80 
Livr. (Monogr. XLIX?2) M. M. Schepman und H. F. Nierstrasz. Parasitische Proso-. bess S va 
branchier der Siboga-Expedition. Mit 2 Tafeln. . -y 1.20" 
Livr. (Monogr. XLIX'4) M. M, Schepman. The Prosobranchia ‘of the Siboga Expedition. ; ie 
Part IJ. Taenioglossa and Ptenoglossa. With 7 plates . . eats as ee 
Livr. (Monogr, XXIXa) Andrew Scott. The Copepoda of the Siboga Expedition. 
Part I. Free-swimming, Littoral and Semi- -parasitic Copepoda. With 69 plates. - Ts 
Livr. (Monogr. LVI4) ©. Ph. Sluiter. Die Tunicaten der Siboga-Expedition. 
Il. Abteilung. Die Merosomen Ascidien. Mit 8 Tafeln und 2 Figuren im Text. aes: 
Livr. (Monogr, XLIX'c c) M. M. Schepman. The Prosobranchia of the Siboga Ee 
Pra 
Part III. Gymnoglossa. With 1 plate . . pega BO. 
Livr. (Monogr. XIII4) C. C. Nutting. The Gorgonacea of the Siboga Expedition. ee at et OE eee. | 
III. The Muriceide. With 22 plates. .,. jae cy pee ce 10,45 
Livr. (Monogr. XIIId') C, C. Nutting. The Gorgonacea of the 'Siboga Expedition. ee Pabel Be , 
IV. The Plexauride.. With 4 plates... .. < ist + a lsOO-. 5 2 
Livr. (Monogr. LVId) J. E. W. Ihle. Die Thaliaceen (einschliesslich “Pyrosomen) Det: - DF Sore het rari 
Siboga-Expedition. Mit 1 Tafel und 6 Figuren im Text. ... <> ign eee een 
Livr. (Monogr. X1114*) C. C. Nutting, The Gorgonacea of the Siboga Expedition. ‘ ee oe 
V. The Iside. With 6 plates. . ete 5 oa 
Livr. (Monogr. XXXVII) H. J. Hansen. The Schizopoda of, the Siboga Expedition. With sa mae Pel 
16 plates and 3 text aac : é Pasig Lay beets ore 
Livr. (Monogr. XIIié°) (oer Nutting. The Gorgonacea of the Siboga Expedition. - Pie. Abe 
VI. The Gorgonellide: With 11 plates... . an 
Livr. (Monogr. XVa) J.. Playfair Mc Murrich. The Actiniaria of the Siboga Expedition. 
Part I. Coates With 1 plate and 14 text figures. . 
Livr. (Monogr. XIII4*) C.-C. Nutting. The Gorgonacea of the Siboga Expedition. : 
VII. The Gorgonide. With 3 plates. . 
Livr. (Monogr. XXXIXa) J. G. de Man. The Decapoda ‘of the Siboga Expedition. ; ae 
Part I. Family Patietne suk sra9 260 9 3 
Livr..(Monogr. LXII) A. & E. S. Gepp. The Codiaceae of the Siboga Expedition including Bresso 
a Monograph of Flabellarieae and Udoteae. With 22 plates . . eek i UR 
Livr. (Monogr. XIII4° C. C. Nutting. The Gorgonacea of the Siboga Expedition. rl, ae 
VU. The Scleraxonia. With 12 plates. . .: iS 
Livr. (Monogr. XLIX'd) M. M. Schepman. The Prosobranchia ‘of ‘the Siboga Expedition. ? 
Part IV. Rachiglossa. With 7 plates... . ses at 
Livr.. (Monogr. VIa') G. Cc. J. Vosmaer. The patra ofike Siboga- Expedition. BS 5 
II. The genus Spirastrella. With 14 plates . . i. Le 6:20. 5°. Fame 
Livr.. (Monogr. XXXIX a!) ) J..G. de Man. The Decapoda of the Siboga Expedition. Se ets ee 
Part II. Family Alpheidae. . » OdOl ee 
Livr. (Monogr. LIIIa) Paul Pelseneer.. Les Lamellibranches de Expédition “du Siboga. Stine 
Partie Anatomique. Avec 26 planches . . + iy LO 55 12 
_Livr, (Monogr. XXIV'a) R. Horst. Polychaeta errantia of the Siboga Expedition. : x Sigs a 
Part I. Amphinomidae. With-1o plates... foe 3.85. sng 480 
Livr, (Monogr. LI11d) Ph. Dautzenberg et A. Bavay. Tes, Lamellibranches. de VExpéd. Bytes a 
du Siboga. Partie Systématique. I. Pectinidés. Avec 2 planches. . = abet s ; 280 
Livr, (Monogr. XLIX'e) M. M. Schepman. The Prosobranchia of the Siboga ‘Expedition, hai ae 
Part V. Toxoglossa. With 6 plates and 1 textfigure. . op 4:80...) 6 
Livr, (Monogr. LVII) Max Weber. Die Fische der Siboga- Expedition. “Mit 12 Tafeln und ~ PUR CRap % < * 
123 Figuren im Text . . ¥ 22.— , 4 27.51 
Livr. (Monogr. XLIX/) M. M. Schepman. The Prosobrankbhia ‘Pulmonata and " Opistho- tebe sie ied i. 
branchia Tectibranchiata Tribe Bullomorpha of the Siboga Expedition. 52 Pee 
Part, Vi. Be 2 and Opisthobranchia Tectibranchiata Hawa Halas With " 
2 plates . rye As 7s. a 2.2 
Livr. (Monogr. XXXI106) P. P. €. “Hoek. The Cirripedia of the ‘Siboga-Expedition, SA Sta 
B. Cirripedia sessilia. With 17 plates and 2 textfigures . . 
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