JAPANESE CHEILOSTOMATOUS BRYOZOA. 



42 1 



pointed end ; their beak 

 also long and curved, with 

 a prominent pointed tooth 

 on each side, so th it the 

 jaws do not come in 

 contact with each other 

 except at the tip. There 

 frequently exist large 

 marginal avicularia, situa- 

 ted at the lower end of 



the outer side of marginal 



Fig. 6. Bitgitla Hròstrata, n. sp. 



Frontal view, x 32. 

 Dorsal view, x 32. 



zocecia and turned to the 

 dorsal side. Ocecia glo- 

 bose, large, with straight 

 lower margin, marked 

 w ith faint radiate striation 

 on the surface. Rootlets very abundant, especially in the lower parts 

 of colony ; arising from a large pore situated at the upper outer angle 

 of marginal zocecia on the dorsal surface. 



This new species is represented in the collection by numerous large 

 colonies. They were obtained at spots in the Sagami Bay, viz., Yodomi 

 70-100 fms. and off Odawara 93 fms. In the habit of growth, the 

 present species closely resembles B. curvirostrata R., but differs from 

 it in the oral spines being longer, more robust and more numerous. 

 Moreover, the two species differ in the characters of avicularia. Further, 

 the new species somewhat resembles ,B. mitrrayana (J.) in the features 

 of zocecia, but differs from it in the shape of spines as well as in the 

 features of avicularia. 



18. lingula dentata (Lamouroux). 



Acamarchis dental«, Lamouroux 1816, Hist. Poly. Coral. Flex., 135, pi. iii, figs. 

 3a, 3b. — Lamouroux 1821, Expos. Méth, 6, pl. xLv, figs. 1-3. — Blainville 1834, 

 Man. d'Act., 459. 



