VAN NAME: SIMPLE ASCIDIANS. 443 
Ascidia callosa Stimpson = Phallusia prunum. 
Glandula glutinans (MoUer) = Eugyra glulinans. 
Cynthia pyriformis Rathke = Pyura auranlium. 
" condylomata sp. nov. = Tethyum rusticum. 
" echinata (Linnaeus) = Pyura echinata. 
" placenta, sp. nov. = Tethyum coriaceum. , 
Pelonaia arenifera Stimpson = Pelonaia corrugata. 
Boltenia bolteni (Linnaeus) = Pyura ovifera. 
Perkins (1869) in his "Molluscan Fauna of New Haven" (Connecti- 
cut), records two simple ascidians from that vicinity: 
Ascidia manhatlensis DeKay = Caesira manhattensis. 
Molgula arenata Stimpson = " arenata. 
Binney (1870) in editing the second edition of Gould's " Report on 
the Invertebrata of Massachusetts" gives a compilation of the informa- 
tion contained in the works of Agassiz, Stimpson, Packard, etc., but 
having no familiarity with the ascidians himself, he took most of the 
names and descriptions just as he found them, and in several cases 
gave two descriptions and names for the same species, or fell into 
other similar errors. The species he includes are those of the above 
mentioned authors with one addition, for he added one more to the 
numerous synonyms of Pyura ovifera (Linnaeus) by describing, from a 
colored drawing by Burkhardt (see p. 441), Boltenia Burkhardti, as a 
new species. 
It is, however, the colored plates that give Binney 's work its chief 
importance as far as the ascidians are concerned. These comprise 
reproductions of drawings by Morse from Packard's alcoholic speci- 
mens collected at Labrador and elsewhere, and the drawings men- 
tioned above (p. 441) made by Burkhardt for Agassiz, but never 
before published. Seven type specimens are shown among these 
illustrations, those of the following species: 
Cynthia placenta Packard = Tethyum coriaceum. 
Boltenia Burkhardti Binney = Pyura ovifera. 
Ascidia psammophora Agassiz = Caesira arenata. 
" ocei^ato Agassiz = Cionaintestinalis war. ocellata. 
" amphora Agassiz = Caesira manhattensis. 
" carnea Agassiz = Dendrodoa carnea. 
" hirsuta Agassiz = Pyura echinata. 
The part of Binney 's work dealing with the ascidians was reviewed 
« Binney's flgnres. 
Fig 
322. 
327. 
330. 
332. 
333. 
I 
334. 
336. 
