REPORT ON THE AMPHIPODA. 575 



J. J. Wild and E. von Willenioes Sulim is reproduced, wliicli had already appeared iu the 

 Transactions of the Linnean >Society, 1875, with the designation " Cystisoma Nepiunus 

 {Thauinoiis pelhicida)," and in The Voyage of the Challenger by Sir C. Wyville Thomson, 

 1877, with the designation " Cystosoma neptuni." 



1886. AUEIVILLIUS, C. W. S. 



Hafsevertebrater Mn nordligaste Tromso amt ocli Vestfinmarken. Med 2 

 Taflor. Meddeladt den 10 Juni 1885. Biliang till k. Svenska vet.-akad. Hand- 

 lingar. Band 11. N:o 4. Stockholm, 1886. 



At page 41 it is mentioned that Ampihithopsis longicaudatn, A. Boeck, is found, as well as 

 Aristias tumidm, Kr0yer, and Andania yectinata, G. 0. Sars, in the branchial sac of 

 Ascidians. A specimen, 8 mm. long, the antennse not included, was found in PhaUusia 

 ohliqun, Heller. On Megaptera hoojis many specimens of Gyamiis hoopis, Lutken, were 

 found, ijrincipally on the sides of the head, a few on the fins, and one further back on the 

 whale's body. Curiously, out of 102 individuals only 12 were females. The largest of the 

 male specimens was 12 mm. long, of the females 9 mm., antennro not included. 



1886. BOVALLIUS, CaRL. 



Remarks on the genus Cysteosoma or Tliaumatops. With one Plate. Com- 

 municated to the Eoy. Swed. Academy of Sciences 1885, September IG. Stock- 

 holm, 1886. Bihang till K. Svenska Vet.-Akad. Handlingar. Band. 11. N:o 9. 



Bovallius considers that Guc^rin's Cystisoma must be corrected into Cysteosoma, and then remarks 

 that "as the name Cysteosoma or Cystisoma has been previously given to a genus of 

 Coleoptera by Westwood, it must be rejected and consequently the name of Willemoes- 

 SuHM Tliaumatops be substituted." But in fact Westwood's genus is Cystosoma, and 

 Gu^rin's name ought neither to be corrected nor rejected. Tliaumatops is itself a 

 correction of Tliaumops, a correction already suggested in the Zoological Record for 1873, 

 but these corrections only multiply synonyms needlessly, and are in my ojiinion very unjust 

 to the founders of genera. If the niceties of classical philology must be attended to iu the 

 invention of new names, it would be better for authors to beware of Greek and Latin 

 altogether and adopt Leach's device of throwing letters together into chance names like 

 Rocinela, at the composition of which no scholar will be able to carp. 



The family called by Willemoes Suhm Cystisomidse is renamed by Bovallius Thaumatopsidfe. 

 This, he says, "is to be ranged between the families Mimonectidai and Phronimidas. It 

 also shows some relations to the family formed by the genus Tyro, Milne-Edwards." He 

 has elsewhere shown that Tyro is the same as the later Clydonia, Dana. To Tliaumatops 

 he assigns four species ; 1. Tliaumatops neptunus, Guerin, 1842, under which he doubtfully 

 includes Thaumops peUucnJa (the male), Willemoes Suhm, 1874, "Phil. Trans. Roy. 

 Soc. Lond. vol. 163, part 3, p. 637, (the male)."; 2. Tliaumatops pelludda, Willemoes 

 Suhm, 1874, "Phil. Trans. Eoy. Soc. vol. 163, ji. i. p. 629 (non p. 638), pi. 49-50, 

 fig. l-9a;" 3. "Tliaumatops Lovrui," n. s.. Fig. 1-14, in which "the two fir.st peretonal 

 segments are free, not coalesced," and " on the under-side of the head there is no shorter 

 row of spines as in Th. Neptunus and Th. pellucida ; " the single known specimen, in 

 "length, 105 ram., was taken in the Indian Ocean; 4. Tliaumatops Jongipies, n. s.. 

 Fig. 15-23, in which also "the two first pjereiunal segments are free, nut coalesced;" the 



