60 WF. Ponder, D.J. Colgan, Т. Terzis, S.A. Clark, A.C. Miller 
Figure 6. Protoconchs of Dalhousia species and Fluvidona centralia. A,B. D 
centralia, Spring ЕІ (station D62). Scales А,С- 0.1mm, B,D - 0.025 
alhousia globosa, Spring Cal. CD. F. 
mm. 
(imparted by periostracum) yellow-brown (some populations Very dark brown or orange brown 
depending on environment). There is no significant 
i sexual dimorphism in shell size in the type 
population. 
Dimensions of holotype. 
SEA d BW 
ТУУ 
Holotype : 3.20 2.52 1.79 1.52 2.69 2.6 
Figured paratype 3.92 2.90 2.09 1.95 3.23 28 
(AMS, С.201745) 
Figured specimens 
(Ca13A) (AMS, C.201746) 2.92 1.74 1.39 1.10 D338 3.5 
(Ca7) (AMS, C.201747) 2.60 П ОС 1.10 2.15 3.1 
3.22 2.00 1559 1.30 2.50 3.5 
