176 _ THE RECENT CRINOIDS 
to study the valuable and historic collection under their 
care, and for the many courtesies which they extended to 
me during my visit to Leyden. 
THE TYPES IN THE LEYDEN MUSEUM. 
The types of the following species described by Johannes 
Miiller in 1841 are in the Leyden Museum: 
Alecto nove-guinec. Alecto timorensis. 
Alecto bennetti. Alecto flagellata. 
Alecto japonica. Alecto elongata. 
The types of the following species described by P. Her- 
bert Carpenter in 1881 are in the Leyden Museum: 
Actinometra alternans. Antedon bimaculata. 
Actinometra schlegelit. Antedon brevicuneata. 
Actinometra robustipinna. Antedon laevicirra. 
Antedon pinniformis. Antedon perspinosa. 
Antedon spicata. Antedon serripinna. 
At the present time these species are all referred to 
different genera from those in which they were described, 
as follows: 
Alecto nove-quinee : Comaster nove-guine, 
Alecto bennetti: Comanthus bennetti. 
Alecto japonica: Comanthus japonica, 
Alecto timorensis: Comanthus parvicirra. 
Alecto flagellata : Dichrometra flagellata. 
Alecto elongata: Dichrometra flagellata. 
Actinometra alternans: Comantheria alternans. 
Actinometra schlegelii: Comanthina schlegelii. 
Actinometra robustipinna: __ Himerometra sp. 
Antedon pinniformis : Amphimetra pinniformis. 
Antedon spicata: Stephanometra spicata. 
Antedon bimaculata: Dichrometra bimaculata. 
Antedon brevicuneata : Dichrometra protectus. 
Antedon laevicirra: Dichrometra protectus. 
Antedon perspinosa : Colobometra perspinosa. 
Antedon serripinna: Oligometra serripinna. 
Notes from the Leyden Museum, Vol. X XXIII. 
