Table 2. Distribution and abundance of selected diphyomorph species.

Species	Habitat	Vertical range	Depth (m)	Latitudinal range	Abundance	Geographic range
Chuniphyes multidentata	deep sea	meso– andbathypelagic	300–2500	63°N-59°S	uncommon	cosmopolitan
Clausophyes moserae	deep sea	meso- andbathypelagic	500–2114	60°N-67°S	uncommon	cosmopolitan
Kephyes ovata	deep sea	epi– andmesopelagic	78–1000	60°N-70°S	uncommon	cosmopolitan
Crystallophyes amygdalina	deep sea	epi- andbathypelagic	380–2000+	51–81°N& 33–74°S	uncommon	bipolar
Heteropyramis crystallina	deep sea	meso- andbathypelagic	300–2600	62°N-71°S	rare	cosmopolitan
Sulculeolaria biloba	deep sea	epipelagic	0–200	62°N-38°S	uncommon	cosmopolitan
Sulculeolaria quadrivalvis	deep sea	epipelagic	0–300	52°N-38°S	uncommon	cosmopolitan
Chelophyes appendiculata	deep sea	epipelagic	0–500	46°N-38°S	very common	cosmopolitan
Dimophyes arctica	deep sea	epi- andmesopelagic	0–600	81°N-71°S	common	cosmopolitan
Diphyes dispar	deep sea	epipelagic	0–300+	43°N-42°S	common	cosmopolitan
Eudoxoides mitra	deep sea	epipelagic	0–200+	36°N-38°S	common	all seas exceptMediterranean
Lensia conoidea	deep sea	epi- andmesopelagic	0–600+	63°’N-46°S	common	cosmopolitan
Lensia fowleri	deep sea	epipelagic	0–200+	61°N-33°S	rare	cosmopolitan
Lensia multicristata	deep sea	epi- andmesopelagic	200–500+	54°N -54°S	common	cosmopolitan
Muggiaea atlantica	neritic	epipelagic	0–100+	59°N-53°’S	common	almost alloceans
Muggiaea kochi	neritic	epipelagic	0–100+	59°N-38°S	locally common	Atlantic andMediterranean
Muggiaea bargmannae	neritic to deep sea	meso- andbathypelagic	400–2000+	36–87°N& 43–71°S	uncommon	bipolar
Gilia reticulata	deep sea	meso– andbathypelagic	500–2000	73°N-71°S	rare	cosmopolitan
Abyla trigona	deep sea	epipelagic	0–200	37°N-33°S	rare	all seas exceptMediterranean
Ceratocymba sagittata	deep sea	epipelagic	0–200	59°N-44°S	common	all seas exceptMediterranean
Abylopsis tetragona	deep sea	epipelagic	0–200+	57°N-47°S	common	cosmopolitan
Bassia bassensis	deep sea	epipelagic	0–200	60°N-41°S	common	cosmopolitan
Enneagonum hyalinum	deep sea	epipelagic	0–200+	58°N-40°S	uncommon	cosmopolitan

Key: epipelagic, 0- ca. 300 m; mesopelagic, 300–1000 m; bathypelagic, 1000 m and below. Abundance scale: very common, common, uncommon, rare, very rare. Cosmopolitan refers to species present in all three great oceans and the Mediterranean. For primary literature used to construct this table, see [1].