ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 399 



the Syllidfe, where it was placed by Greef ; lospilus phalacroides g. et sp. n. 

 is an amended name for what the author first called loda microceros ; what 

 were taken for antennae have since been found to be the palps. Some 

 additions are made to Greef s account of Phalacrophorus pictus. Descriptions 

 and notes are given of Asterope Candida, Alciope microcephala sp. n., Vanadis 

 heterocliseta sp. n., and BhyncJionerella capitata. 



Of the Tomopteridas, which are rare in the bay, and generally, when 

 found, are young, an account is given of Tomopteris Kefersteinii. 



Of the Typhloscoleeidfe, which are very rare, Sagittella Koioalevskii 

 was alone recognized ; of the Aphroditidre there was a Polynoe, which may 

 be pelagic, and if so may be called P. pelagica. Of the Eunicidte, an 

 account is given of Ophryotroclia puerilis. In the commencement of his 

 account of the Syllidte the author has some critical remarks on Prof. 

 Mcintosh's description of Syllis ramosa ; of the forms without alternation 

 of generation Amhlyosyllis algefncB sp. n. is described; of those with alter- 

 nation, additions are made to Langerhaas' account of Virclioioia clavata, of 

 which its original describer found only one example at Madeira, of 

 Autolytus prolifer, and oi Myrianida fasciata. 



In his descriptions of the head the author recognizes on the lower 

 surface, at the level of the mouth, the palps ; in some Syllidae there are 

 occipital aj)pendages which are called the ciliated lobes, and all the other 

 appendages are anterior — either median, superior, or inferior ; in the pygi- 

 dium there are the lateral anal cirri, and the median pygidial appendages ; 

 on all the other segments, among which the buccal segment of authors is 

 included, there may be a pedal mamelon, and a dorsal and a ventral cirrus. 



Australian Polychseta.* — Of the family Syllidse only two species have 

 been described from Australia. Mr. W. A. Haswell describes seven new 

 species. 



Syllis corruscans is very remarkable from the presence of striated mus- 

 cular tissue in the gizzard — " a tissue which has never before been described 

 as occurring in Annelida." In this species there are innumerable unicellular 

 glands in the hypoderm. The histology of the various organs is described. 

 In the gizzard there is a thin cuticle, below which is the epithelium ; an 

 external and internal layer of ordinary non-striated muscle, and a middle 

 layer of striated muscle arranged radially, the fibres of which present a 

 nucleated protoplasmic core, with very marked striae in their contractile 

 portions. These rows of striated muscle have hitherto been regarded as 

 transverse rows of glands. In the hinder portion of the intestine the 

 epithelium contains numerous greenish concretions, which the author 

 regards as being " of a uric character." The " segmental organs " (which 

 the author differentiates from A. G. Bourne's " nex^hridia ") are curved 

 brown tubes opening on the ventral surface close to the parapodia. As usual, 

 a combination of fission and budding occurs ; the anterior dark-coloured 

 region is female ; the posterior orange- coloured portion is male ; and this 

 male form differs in many respects from the complete animal. Syllis hin- 

 hergiana shows many points of resemblance to S. umhricolor, from which it 

 differs by the presence of three acicula in the parapodia. It is also related 

 to S. gracilis and S. Jiamata and others. Sijllis tseniseformis has uniramous 

 feet, with three acicula, and twelve compound sette, which have a short 

 blade, bifid at the apex. Syllis schmardiana is somewhat similar to 

 S. erythropsis and S. vittatr<. Gr. In this species also striated muscular 

 fibres occur in the gizzard ; but the striae are very few. Syllis nigropunciala 

 is a small form, not unlike S. variegata Gr. Gnathosyllis zonata was in- 



* Proc. Linn. Sue. N. S. Wales, x. (1886) pp. 733-54 (fi pis.). 



