On the Dermal Sense- On/ans of the Crustacea. 299 



;k of the neclv, 

 ack, and scajni- 

 vrs : 



A. Woodfordi, $ adult. 

 Dark chestnut-rufous. 



A.Jlavicollis, 5 adult. 

 Ashy brown, slightly glossed. 



m\^ and upper Ashy black, fringed witli cinna- Ashy brown, 

 lil-coverts : mon-rufous. 



lole of the under Cinnamon-rufous, becoming more Lower part of the cheeks, sides 



iirface 



cinnamon and less rufous, be- 

 low the breast. Throat and 

 neck flecked with small dark 

 shaft-spots. 



men 'M. 



sus 2-7. 



Idle toe and 



law 21. 



of the throat, and neck cinna- 

 mon. Feathers of the chin, 

 front of throat and neck, and 

 chest dull chestnut, shading 

 into dark grey towards the 

 extremities, and somewhat 

 widely and irreo-ularly mar- 

 gined on one or both webs with 

 white. Brea,st and underparts 

 blackish grey, edged and 

 fringed with whitish or buff 

 on the bi'llv. 



3-4. 

 20. 



2-8. 



I think anyone taking the trouble to compare tlie above 

 characters and measurements will have no further doubt that 

 A. Woodfordi is a very distinct bird ; the proportion of the 

 middle toe and claw to the tarsus shows this at a glance, for 

 in the Solomon-Island bird the tarsus is much the longer, 

 while in A.flavicollis it is somewhat shorter. 



Gates, in his ' Birds of Buvmah,' ii. p. 255, is no doubt 

 somewhat in error in describing the male and female of A. 

 flavicoUis as similar in plumage, for the female never has the 

 slate-grey upper and underparts so conspicuous in the adult 

 male. 



XL. — A Contrihution to the Knowledge of the Dermal Sense- 

 Organs of the Crustacea. By Dr. Otto VOM Kath*. 



I HAVE been engaged for a long time upon comparative studies 

 on the dermal sense-organs of Arthropods, and have already 

 published accounts of my investigations on Myriapods and 



• Translated from the ' Zoologischer Anzeiger,' xiv. Jahrg. no. 3Go, 

 pp. 190-200, andjio. 300. pp. 20o-214, June 1891. 



20* 



