THE 



VOYAGE OF H.M.S. CHALLENOEE. 



ZOOLOGY. 



REPORT on the Anomura collected by H.M.S. Challenger during the Years 

 1873-76. By J. R. Henderson, M.B., F.L.S., Professor of Biology in 

 the Christian College, and Fellow of the University, Madras. 



PEEFACE. 



Some time after the retui'n of the Challenger Expedition, the Anomura collected 

 during the voyage were placed for examination and description in the hands of Dr. Jules 

 Barrois, the well-known zoologist of Lille. It is to be regretted that this naturalist, finding 

 insufficient time at his disposal, returned the collection to the Challenger Office. Towards 

 the end of 1884, while engaged in zoological work at the Scottish Marine Station, Granton, 

 I was asked by Mr. John Murray to undertake the work, and immediately after I com- 

 menced the identification of the species. 



I have to express my regret that the completion of the Report has been so long 

 delayed, but this result has been brought about by causes altogether unforeseen at the 

 time when the work was commenced. In the autumn of 1885 I left Scotland to take 

 up an appointment in India, and the whole of the Report has been written in the latter 

 countrj^ Other engagements prevented me from devoting much time to the collection 

 for upwards of a year after my arrival in Madras, and it is with considerable difficulty 

 that the Report has been completed within the specified time. It was originally my 

 intention to have discussed at greater length some points which I have merely touched 

 on in the following pages, and to have made the Report more comprehensive in its scope ; 

 but apart from the insufficient time at my disposal, the distance from any great library or 

 museum has rendered this an impossibility. I am conscious that many of the species 



(ZOOU CHALL. EXP. — PART LXIX. — 1888.) Zzz a 



