6 . GENERAL REMARKS. 
Report on the Florida Reefs by Louis Agassiz was published by his son, the special interest 
of which, for our present purpose, centres in the three excellent plates of M. palmata, 
M. cervicornis, and M. prolifera. 
In the ‘ Marine Fauna of Mauritius and Seychelles,’ by Mobius, Richters, and v. Martens, 
seven species of Madrepora are recorded by Mobius from Mauritius, which were identified by 
Haacke ; six of the species also occur in the Red Sea. S. O. Ridley, in a paper on the Coral 
Fauna of Ceylon (1883), records two species of Madrepora. H. O. Forbes gives, in his 
‘ Naturalist’s Wanderings in the Eastern Archipelago’ (1885), a list of Corals collected in 
the Keeling Islands, which were determined by Ridley and Quelch, in which two species of 
Madrepora are recorded, one of which is named M. orbipora, Dana, var.; but no species 
was described by Dana under that name ; the specific name intended is probably cribripora. 
The ‘ Challenger’ Report on Coral Reefs by Quelch appeared in 1886, and in it fifty 
species of Madrepora are recorded, eleven of which are new. In the same year Duncan 
described a collection of Corals from the Mergui Archipelago, which included eight species 
of Madrepora, all of which are referred to known species. 
Tn 1888 Rathbun published a catalogue of the species of Madrepora in the United-States 
National Museum. The-list includes 59 species in all; the type specimens of 48 of the new 
species described by Dana and also 6 of Verrill’s are in the Collection. The types of the 
remaining species of Madrepora described by Dana appear to have been lost, excepting in the 
rare instances (e.g. M. digitifera) where the species were described from specimens already 
in the collection of other institutions. This collection also contains the type of M. secale, 
Studer (= M. plantaginea, Dana, non Lamk.). 
Ortmann has published two important descriptive papers in which numerous species of 
Madrepora are recorded. The first, published in 1888, is a list of the collection of Corals in 
the Strassburg Museum. In this paper 44 species of Madrepora are enumerated, only one of 
which is described as new, but in the case of 8 others the reference to known species is made 
with considerable doubt. The second paper is devoted to a description of a collection of 
Corals made by Haeckel in Ceylon, the types of which are in Jena; 27 species are here 
recorded, 5 of which are described as new to science. In Faurot’s ‘Report on the Red 
Sea Mission,’ published in 1888, 4 species of Madrepora are recorded, 3 from the Gulf of 
Aden and 1 from Kamaram Island. 
Tn 1890 Bassett-Smith described a collection of Corals from the China Sea (Macclesfield 
and Tizard Banks), In this paper 30 species of Madrepora are enumerated, 4 of which are 
described as new, but a fifth, which is considered new, is not named. An interesting feature 
in this collection is the fact that all the new species were obtained at depths between 23 and 
30 fathoms. In the same year Thurston published a paper on the Fisheries and Marine 
Fauna of the Gulf of Manaar, in which the occurrence of 3 species of Madrepora is recorded. 
Since the systematic portion of this work was completed, a paper by Dr. Rehberg, “ Ueber 
neue und wenig bekannte Korallen,”’ has come into my hands ; it was published in November 
