tJie Zoophytes of South Devon and South Cornwall. 81 



MULLl'SCULDA. 



Class rOLYZOA. 



Order INFUNDIBULATA (Gymnolaimata, Alhiian). 



[Suborder Cyclostoinata. 



Family Tubuliporidae. 



Genus Alecto, Lamouroux. 



A. retiforinis^ n. sp. 



Polyzoary lobate, the lobes diverging from a common centre, 

 nuieii and irregularly Ijranelicd, the branches anostoinosing 

 so as to form a rude network, the extremities generally 

 bitid ; sm*face minutely punctate, and often grooved trans- 

 versely ; zocecia scattered irregularly, the free extremities 

 of the tube ])rojecting to a considerable distance, erect, ori- 

 tice plain. The polyzoary frequently rises into short cylin- 

 drical processes with a cellular apex. 



Specimens of this fine species measure about an inch across, 

 and form somewhat circular patches. Four or five much- 

 ])ranched lobes radiate from a central point, the ramifications 

 anastomosing freely so as to form irregular reticulations. The 

 extremities of the lobes and of the branches arc bifid. The 

 surface is often much thickened and grooved transversely ; 

 but in the newer portions towards the end of the branches the 

 lines which mark the walls of the zooccia are distinctly visi- 

 ble. In one of my specimens the erect processes -with cellular 

 extremities are numerous and characteristic. The colour of 

 the polyzoaiy is white. 



The A. diastoporideSj Norman, is perhaps the most nearly 

 allied species. 



Hah. Salcombe Bay, on a valve of Fecten maximus ; Corn- 

 wall, on Pinna from deep water. 



Family Diastoporidse. 

 Genus Diastopoka, Lamouroux. 

 D. sarniensiSy Norman. 

 Cornwall, on stone from deep water. 



Suborder Paludicellea. 



Genus Paludicella, Gervais. 



P. Ehrenhergi^ Van Beneden. 



On the underside of the leaves of water-lilies in the river 

 Clist, near Bishop's Clist, South Devon (Parjitt). This and 



