338 Leuckart; Bericht üb. d. wissenschaftlichen Leistungen 



n. gen. 1 Art (Lissonotus fragilis A. Ag.), Platybrissus 

 Grube 1 Art. 



**Euspatangina: Spatangus Kl . 3 Arten, Maretia Gr. 2 Ar- 

 ten, Eupatagus Ag. 1 Art, Lovenia Des. 3 Arten, Breynia 

 Desm. 1 Art, Echiuocardium Gr. {= Amphidetus Ag.) 5 

 Arten, darunter Echin, cordatum (= Spat, arcuarius Lk., 

 Amph. Kurtzii Gr.) und Ech. flavescens Müll. (= C.ovatum). 

 ***Leskiadae: Paleostoma Lov = Leskia Gr.) 1 Art. 

 ****Brissina: Hemiaster Des (= Abatus Tr.) 2 Arten, 

 Tripylus Phil. 1 Art, Bhynchobrissus n. gen. 1 Art, Bris- 

 sopsis Ag. (= Kleinia Gr.), Agassizia Val. 2 Arten, Brissus Kl. 

 3 Arten, darunter Br. unicolor Kl. (= Br. columbaris Lk.), 

 Metalia Gr. 4 Arten, Meoma Gr. 2 Arten, Linthia Merr. 

 (= Desoria Gr.) 1 Art, Faorina Gr. 1 Art, Schizaster Ag. 

 5 Arten, Moira A. Ag. 3 Arten. 

 Indem wir für alles Weitere auf das Werk selbst verweisen, 

 fügen wir nachfolgend nur noch die Diagnosen der zwei neuen Ge- 

 nera hinzu: 



Homolampas B. gen.la intermediate between Cardiaster and 

 Holaster. It has, like those genera, ambulacra flusb with the test,^ 

 but, unlike Holaster, has a well developed anal and subanal fa- 

 sciola, while it wants the lateral fasciola of Cardiaster. The ambula- 

 cral pores form no petals; they extend as simple pores between 

 the ambulacral plates from the phyllodes to the apex. The actinal 

 surface is flat; the actinostome is pentagonal, not bilabial with well 

 developed phyllodes, but without trace of bourrelets — a strong con- 

 necting link between the Cassidulidae and Spatangoids proper. The 

 compactness of the apical System of this genus is in marked contrast 

 with its structure in allied genera, such as Cardiaster and Holaster. 

 The general outline of the test resembles Maretia, but is some- 

 what more elongate. Jt is closely allied to Platybrissus, but the pres- 

 ence of a subanal fasciola as well , as a slight anterior groove 

 readely distinguish the two genera in additiou of the presence of a 

 rudimentary rosette in Platybrissus, wanting to this genus. (P. 347.) 

 Mhynchohrissus n. gen. Test thiu; outline from above dia- 

 mont-shaped; vertex posterior ; lateral ambulacra petaloid. Odd. ante- 

 rior ambulacrum flush with the test. Peripetalous fasciola existing with 

 independent anal and subanal fasciolae. Anal fasciola forming a 

 closed anal area. Tubercles remarkable for the great development of 

 the flat raised scrobicular area. Spines of abactinal surface short, 

 silk-like, curved ; on the actinal surface long, curved. Posterior late- 

 ral ambulacra passing gradually into the actinal surface, without 

 forming a marked edge of the test in the posterior extremity. The 

 edge of the test is well defined in the anterior actinal extremity. (P. 590.) 



