948 Bii. n. J. n/\.NSl!l^r on oiinsTAOB/v.w3 [Dec. 1 , 



(p. 217), must be mentioned ; for in the final report, 1895, he with- 

 draws it " as large and mature individuals of S. ediuardsii," 

 redescribing and figuring one of the three type specimens as this 

 species (p. 212, pi. li. ligs. 1-1 «). But his representation shows 

 tliat S. liulia, Fax., must be maintained as valid, as the exterior 

 margin of the ext. br. of urp. is naked in almost g of its length, 

 while in S. edwardsi, Kr., it is hairy in the total length ; further- 

 more, the rostrum, besides being somewhat differently shaped, is 

 considerably shorter in the last-named species than in S. lialm, 

 Pax., a feature also observed by Paxon (p. 214). When he writes 

 (p. 214):— "Kroyer notes a 'rare variety' of S. edivardsi, dis- 

 tinguished by a larger rostrum," I may remark that a preserved 

 specimen of this variety belongs to another species, S. penerinki. 

 Bate, II. J. H. 



As to this last name and some other names in the following 

 chapter I must say a few words. When an author in the same 

 work has described an adult species and . . s Masiujopus as two 

 species, the species, of course, retains the name of the adult. But 

 in some instances only the Mastigopus has been described, while 

 . I also possess and briefly describe '^he black-eyed or even the 

 mature form. In order to avoid new names I, in these cases, have 

 used tlie name of the Musthjopus for the adult Seri/estes, tliinking 

 that a double series of names, one for one of tlie not f'ew Masii- 

 ffojnis-stvLgeH, and another for the adult species itself, cannot be 

 maintained, as the Mastigopus and the Sunjestes — in strong 

 contradistinction to the relation between the Squillidce and their 

 larvffi — are connected with even transition. To avoid misappre- 

 liension I, in these cases, liave placed my own name (H. J . II.) 

 after the name of the author who has established the Mastigopus. 

 It will, I fear, in the future also be necessary to adopt the oldest 

 name for a species when its Mastigopus has been described before 

 the adult. 



V. Conspectus of the Species. 



In the following tabular view (and added notes) all established 

 species are enumerated, and besides two new species are named 

 and later on described. The tabular view is worked out with 

 reference to the adults and the Mastigopus-aiages, with the ex- 

 ception of the youngest Mastigopus-aiage (in several iustances= 

 Mastigopus, auct.), which sometimes differs very much from the 

 somewhat older stages. 



When the black-eyed form of a species has been described else- 

 where or will be mentioned in my later notes, the name in the 

 tabular view is printed with interspaced letters ; if the really 

 mature form is known I further mark the name with an asterisk. 

 AVhen the same stage, in most instances the adult one, has been 

 describedunder various names, they are given as synonyms following 

 the oldest name, but the different stages of a species are coiincctud 

 with a \ . 



By this, perhaps somewhat artificial, mode of proceeding it will, 

 I hope, be easy to form a notion of the species. 



