MARINE ZOOLOGY 



7. Cynthia morus, Forbes. 



Animal barely ^ inch in width, wider 

 than high, warty, attached by a wide base ; 

 colour, magenta crimson ; branchial orifice 

 with four pale lobes. A specimen pre- 

 served for some years in formalin has 

 successfully retained its colour. Somewhat 

 rare ; trawled. Hastings. 



ASCIDIM COMPOSITE 



BOTRYLLID^ 



8. Botryllus sch/osseri.f 

 Brighton. 



9. Botryllus pslycyclus.f 

 Brighton. 



10. Botryllus bivittatus.f 

 Brighton. 



1 1 . Leptoclinum listerianumA 

 Brighton. 



12. Distoma ruhrum.\ 

 Brighton. 



13. Amaroecium, sp. 



Specimen consists of a little flat gelatinous 

 mass, \ inch in thickness, and i^ inches in 



length, lobed around the edge, and with the 

 margin folded over upwards and inwards, 

 like a clenched fist. One or two delicate 

 algae pass up through the centre. The 

 mass is translucent, colourless, and the 

 zooids are of an opaque grey-buff, and are 

 seen here and there in well defined oblong 

 systems. In other portions the systems 

 become indistinct, and in parts, there is no 

 arrangement at all. There is no common 

 aperture. The zooid has a six-lobed 

 branchial orifice, a long atrial languet, a 

 long post-abdomen, which terminates in a 

 flattened rounded lobe, with another lobe 

 more or less well formed on either side. 

 Anus, from lateral view, is bilobed ? Em- 

 bedded in the gelatinous matrix is a little 

 sand. The specimen does not appear to 

 correspond with either of the species 

 proliferum, nordmanni, or argus but bears 

 some resemblance in the lobed character 

 of the specimen to Apiidlum fallax. In 

 combining the two characters of systemic 

 and non-systemic arrangement of the zooids 

 the specimen bears a resemblance to A. 

 irregulare var. concinnum, Herdman, from 

 different latitudes. Rare. Hastings. 



14. Amaroecium argus A 

 Brighton. 



107 



