LIST OF FAMILIES, GENERA, AND SPECIES. 



N.B. — This list is a complete catalogue of all the genera and species of Siphonophone hitherto described 

 with sufficient evidence (from 1775 to 1888); the doubtful or insufficiently characterised species are marked 

 by a query. Those new species, which are followed by the words " Morph. Siphon.," will be described after- 

 wards in my Morphologie der Siphonophoren. 



Order I. DISCONECT^, Haeckel (System, 95, p. 29). 



Family I. D I s c A L I v>M, Haeckel (System, 95, p. 29). 

 Genus 1. Discalia, Hkl. (95, p. 29). 



1. Discalia medusina, Hkl. (Report, p. 46, PI. XLIX. figs. 1—6). South Pacific, Station 288. 



2. Discalia primordialis, Hkl. (Report, p. 46). Tropical Pacific, Station 274. 



Genus 2. Disconalia, Hkl. (95, p. 30). 



3. Disconalia gastroblasta, Hkl. (Report, p. 48, PI. XLIX. figs. 7-12 ; PI. L.). South Pacific, 



Station 181. 



4. Disconalia pectyllis, Hkl. (Morph. Siphon.). Indian Ocean, Station 157. 



5. Disconalia ramifera, Hkl. (?) ( = Porpita ramifera, Eschscholtz ?, 1, p. 178, Taf. xvi fig. 3). 



Tropical Pacific (?). 



Family II. P o R p I t i dje, Brandt (25, p. 40). 

 Genus 3. Porpalia, Hkl. (95, p. 30). 



6. Porpalia prunella, Hkl. (Report, p. 58, PL XLVIIL). Tropical Pacific, Station 222. 



7. Porpalia gldbosa, Hkl. ( = Porpita globosa, Esch., 1, p. 178, Taf. xvi. fig. 4). Tropical Atlantic 



(near the Cape Verde Islands). 



