THE 
VOYAGE OF H.M.S. CHALLENGER. 
ZOOLOGY. 
REPORT on the Heteropoda collected by H.M.S. Challenger during the 
Years 1873-76. By Edgar A. Smith, F.Z.S., Assistant in the Zoological 
Department of the British Museum. 
INTRODUCTION. 
The collection of Heteropoda submitted to me for examination and description consists 
of a number of dead shells of Atlantidse, which were dredged at various stations in the 
Atlantic and Pacific Oceans, and of a few specimens of the same family and others 
belonging to the Pterotracheidse which were obtained occasionally by surface dredging. 
Most of the latter specimens are not in very good condition, the majority being more or 
less mutilated, so that their identification has been all the more difficult and in some 
cases impossible. 
As no list of the species of this group of Mollusca has been attempted for many years, 
it was suggested by Mr. John Murray that I should compile a synonymic catalogue of the 
various families, genera, and species, which might prove of service to those who may have 
occasion to study the Heteropoda. 
Such a catalogue I have prepared, and have endeavoured to make the references as 
complete as the leisure time 1 at my disposal would allow. The chronological sequence 
has been adopted in order that the priority of names can be seen at a glance and the 
progressive knowledge of each species the more readily traced. 
1 The collection -was placed in my hands on October j, 1887. 
(ZOOL. CHALL. EXP. PART LXXII. 1888.) 
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