176 EUG. DADAY DE DEÉS 
maxima fere in medio sita; apice anteriore latiore, posteriore 
acutiore; marginibus lateralibus late arcuatis (fig. 37, ). 
Valvulae concharum umbone latiuscula, marginem dorsalem 
disüncte superante, ad marginem anteriorem parum approxi- 
Fig. 37. — Caenestheriella Elizabethae (G. O. Sars). — a, Q concha a latere, 1 : 5: 
b, S concha a latere, 1 : 5; ec, @ caput a latere, 1 : 10; 4, © caput a latere, 1 : 10; 
e, © conchae supra visae, 1 : 5; f, O' conchae supra visae, 1 : 5: g, h, & S'aculei 
telsoni marginales. Reich. Oc. 1, Obj. 2; à, © telsonum et segmenta aliquot ante- 
cedentia. Reich. Oc. I, Obj. 0: x, ovum. Reich. Oc. I, Obj. 2; 7, © telsonum et 
segmenta aliquot antecedentia. Reich. Oc. 1, Obj. 0; », © pars apicalis pedum 
primi paris. Reich. Oc. I, Obj. 0: n, © pars apicalis pedum 2-di paris. Reich. Oc. I, 
Obj. 0; 0, © pars apicalis exopoditi pedum primi paris. Reich. Oe. 1, Obj. #; 
p. ® pes 10-paris. Reich. Oc. 1, Obj. 0 ; g,7, © O' pars valvulae concharum. Reich. 
Oc: I, 0bj."2: 
mala; zonis incrementi 18-24, columnaliter concinne granula- 
üis intervallisque angustis, transversalibus, pellucidis, interdum 
ramosis; senioribus in margine laevibus (fig. 37, 7), junioribus 
vero aculeatis setosisque (fig. 37, g); colore dilute flavescente, 
umbone interdum flavo. 
