CONTENTS. 



Page 



Introduction o 



Observations on living specimens 7 



Movement 7 



Color in living specimens 10 



Commensal Algae 10 



Developmental stages 11 



Variation 11 



Distribution of Foraminifera of Tortugas 



Region 12 



Relation of Tortugas fauna to those of other 



Regions 14 



Stations and data 14 



Astrorhizidae 18 



Iridia Heron-Alien and Earland 18 



diaphana Heron-Allen and Earland. 18 



Haliphysema Bowerbank 18 



advena, new species 18 



Lituolidee 20 



Ammobaculites Cushman 20 



reophaciformis Cushman . 20 



Trochammina Parker and Jones 20 



advena, new species 20 



Carterina H. B. Brady 21 



spiculotesta (Carter) 21 



Textulariidffi 22 



Textularia Def ranee 22 



agglutinans d'Orbigny 22 



candeiana d'Orbigny 23 



rugosa Reuss? 23 



mayori, new species 23 



floridana, new species 24 



conica d'Orbigny 24 



Bigenerina d'Orbigny 25 



nodosaria d'Orbigny 25 



Bolivina d'Orbigny 25 



pulchella (d'Orbigny) 25 



compacta (Sidebottom) 26 



limbata H. B. Brady var. cos- 



tulata, n. var 26 



mayori, new species 27 



striatula, new species 27 



rhomboidalis (Millet) 28 



Vemeuilina d'Orbigny 28 



spinulosa Reuss 28 



Valvulina d'Orbigny 29 



oviedoiana d'Orbigny 29 



Clavoilina d'Orbigny 29 



tricarinata d'Orbigny 29 



sp.? 30 



nodosaria d'Orbigny 30 



Buliminoides Cushman 31 



williamsoniana (H. B. Brady) 31 



Virgulina d'Orbigny 31 



punctata d'Orbigny 31 



Lagenida; 32 



Nodosaria Lamarck 32 



(Glandulina) rotundata (Reuss) 32 



sp.? 32 



Cristellaria Lamarck 32 



sp.? 32 



Ease 



Lagenidae — Continued. 



Polymorphina d'Orbigny 33 



regina H. B. Brady, Parker 



and Jones 33 



pulchella (d'Orbigny) 33 



gibba d'Orbigny 34 



lactea (Walker and Jacob) 



var 34 



sp.? 34 



Uvigerina d'Orbigny 34 



angulosa Williamson 34 



Siphogenerina Schlumborger 35 



advena, new species 35 



raphanus (Parker and Jones) 35 



Globigerinidae 35 



Globigerina d'Orbigny 35 



bulloides d'Orbigny 35 



sequilateralis H. B. Brady var. 36 



dutertrei d'Orbigny 36 



rubra d'Orbigny 36 



Rotaliidae 37 



Spirillina Ehrenberg 37 



vivipara Ehrenberg 37 



vivipara Ehrenberg var 37 



Discorbis Lamarck 38 



orbicularis (Terquem) 38 



mira, new species 39 



floridana, new species 39 



advena, new species 40 



auberii (d'Orbigny) 40 



subaraucana, new species 41 



Cymbalopora Hagenow 41 



squammosa (d'Orbignj') . ■ . . 41 



Tretomphalus Moebius 42 



bulloides (d'Orbigny) 42 



Planorbulina d'Orbigny 45 



acervalis H. B. Brady 45 



mediterranensis d'Orbigny . . 45 



TruncatuIJna d'Orbigny 46 



rosea d'Orbigny 46 



candeiana (d'Orbigny) 47 



antillarum (d'Orbigny) 48 



cora (d'Orbigny) 48 



advena (d'Orbigny) 49 



siphonina Reuss 49 



pulchra Cushman . 49 



Anomalina d'Orbigny 50 



edwardsiana (d'Orbigny) 50 



ammonoides (Reuss)? 60 



Pulvinulina' Parker and Jones 50 



menardii (d'Orbigny) 50 



incerata, new'species 51 



repanda (Fichtel and Moll) ... 61 



semipunctata, new species. ... 51 



Rotalia Lamarck 52 



beccarii (Linmeus) 52 



Homotrema Hickson 63 



rubrum (Lamarck) 63 



Asterigerina d'Orbigny 54 



carinata d'Orbigny 54 



I (s^-i I 



