BYTHOCYTIIERE. 



[ 126 ] 



CABEREAD.E. 



tion of the cells like teeth above, to emit 

 grumous masses of spermatozoids (tig. 80). 



B. indusiata has been found at Aboyne, 

 in Aberdeenshire, by Prof. Dickie. 



BiBL. Bruch and Schimper, Bri/ol. Europ. 

 part i. ; Wilson, Bnj. Brit. p. 198. 



Buxbanmia aphylla. 



Fig. 87. Fig. 88. Fig. 89. 



Buxbaumia aphylla. 



Fig. 90. Fig. 91. Fig. 92. 



Fig. 87. A ripe capsule, magnified 15 diameters. 



Fig. 88. A plant iu which the capsule has burst and 

 lost the spore-sac, &c., magnified IS diameters. 



Fig. 89. Spore-sae exposed by removal of the wall of 

 the capsule, showing the filaments by which the spore- 

 sac is suspended within the latter ; magnified 40 dia- 

 meters. 



BYTHOCYTHE'EE, Sars.— A genus of 

 Eutomostraca (Ostracoda), fam. Cytheridae. 



Distinguished by the toothed mandibles, 

 the 4-iointed lo\s'er, and the 7-jointed upper 

 antennfE. 



3 British living species : B. sim]ilex, B. 

 constricta, and B. fiirc/ida. 



BiBL. Brady, Linn. Tr. xxvi. pp. 393, 

 450. 



BYTHOTREPIIES, Leydig.— A genus 

 of Entomostiaca, ord. Cladocera, fam. 

 JXaphniadas. Allied to Polyphenms and 

 Evadne. 



B. lonf/imamis. Caudal bristle t^vo or 

 three times the length of the body. Found 

 in Scania. 



BiBL. Leydig, Z)(7/j7/7i2V/. 244; Ann. N. H. 

 18G2, Lx. p. 130. 



Fig. 92. A young fertile plant elevating its sporange 

 coTered by the calyptra, magnified 15 diameters. 



Fig. 93. 



Fig. 94. 



Fig- 93. Mouth of capsule, with double peristome and 

 recurved persistent annuhis; magnified L'O diameters. 



Fig. 94. Columella with adherent operculum, both 

 capsule-wall and spore-sac having been removed; 

 magnified 60 diameters. 



c. 



CABE'REA, Lamx.— A genus of Infun- 

 dibulate Poh'zoa (Bryozoa), of the suborder 

 Cheilostomata, and famih' Cabereadse. 



Distinguished by the unjoiuted polypi- 

 dom, with narrow branches ; the cells in 

 two or three rows, \\\i]\ large vibracula 

 (whips) or sessile avicularia at the back, 

 placed obliquely in two rows. Two British 

 species. 



C. Hooheri ( CeJhdaria Hook., Johnston). 

 Cells rounded, diverging, and projecting. 

 Rare. 



BiBL. Johnston, Br. Zooph. 338; Busk, 

 Mar. Poli/z. 37 ; Iliucks, Polyzoa, 57. 



CABE'READ.E.— A family of Infundi- 

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