BEACHIOPODA. 



367 



nislied with, two short lamellr©. Distribution, 3 species. Brazil, 

 13 fathoms. New Zealand, South Australia. 



Morrisia (anoinioides, Scacchi), Davidson. Eig. 155. Shell 

 minute, conspicuously punctate ; foramen large, encroaching 

 equally on both valves ; hinge area small, straight ; loop not 

 reflected, attached to a small forked process in the centre of the 

 valve. Animal with sigmoid arms, destitute of sjoiral termina- 

 tions ; cirri in pairs. Distribution, 3 species. Mediterranean. 

 95 fathoms. (Forbes.) Fossil, 4 species. Chalk — . Europe. 



Fig. 156. Dorsal valve with animal.-|- Fig. 157. Dorsal valve. 



Kraussia (rubra), Dav. Cape. Fig. 157. K. Lamarckiana, 

 Dav. Australia. Fig. 156. Shell transversely oblong ; hinge- 

 line nearly straight ; beak truncated, laterally keeled ; area 

 flat; foramen large, deltidium rudimentary; dorsal valve 

 longitudinally impressed, furnished inside with a forked pro- 

 cess rising nearly centrally from the septum ; interior often 

 strongly tuberculated. The apophysis is sometimes a little 

 branched, indicating a tendency towards the form it attains in 

 Eig. 158. Animal with rather small oral arms, the spiral lobe 

 very diminutive. Distribution, 6 species. South Africa, Sydney, 

 New Zealand ; low water to 120 fathoms. 



Fig. 158. 



Dorsal valve. 



fMegerlia (truncata), King, 1850. PI. XY., Fig. 9. Eig. 

 158. Loop trebly attached ; to the hinge-plate by its crura, and 

 to the septum by processes from the diverging and reflected 

 portions of the loop. Distribution, 3 species. Mediterranean, 

 Philippines. These species belong to the same natural group 

 with Kraussia. Fossil, 7 species. Chalk — . 



