Four new species and two new genera of Metapseudidae (Crustacea: Tanaidacea: Apseudomorpha) from Australian coral reefs Author Stępień, Anna Author Błażewicz-Paszkowycz, Magdalena text Zootaxa 2013 3717 4 559 592 journal article 10.11646/zootaxa.3717.4.7 40cc4b4f-081e-4a4e-bf7c-b08761900f89 1175-5326 284961 B3FA40CA-197E-4ABA-B380-290B0AEA4F6C Genus Bamberus n. gen. Diagnosis. Body elongated, seven times as long as wide, integument smooth. Carapace little wider than long and as long as pereonites 1 and 2 together. Pleon about one-quarter of total body length, consisting of five free pleonites and pleotelson; pleotelson with one short apophysis on each side. Antennule biramous, peduncle first article without apophyses. Antennal squama small with three distal setae. Mandibular palp with three articles, article 1 with one seta. Maxillule inner endite grossly reduced with two distal setae; palp with three distal setae. Labium palp with two setae terminally. Cheliped with exopod, in female slender, in male enlarged. Pereopod 1 with exopod. Pereopods 1–3 basis without apophyses. Pleopods biramous; each ramus with six plumose setae. Uropod peduncle with strong apophysis dorsally; endopod as long as quarter of total body length, consisting of about 10 segments; exopod five-segmented. Type species: Bamberus jinigudirus n.gen. n. sp. , by monotypy. Etymology. The name is given in honour of Dr Roger N. Bamber, our special friend, in recognition of his accomplished contribution to the knowledge of the Tanaidacea . Gender: masculine Remarks. The combination of the characters such as the elongate second article of the antenna armed with apophyses on its inner margin and with a small squama, a long third maxilliped-palp article, a first pereopod with an exopodite bearing five setae, and with a stout basis bearing plumose setae, pereopods 2 to 6 more slender (walking type ) than the first pereopod and pereopods 3 to 6 with a propodus longer than the carpus, as well as much larger chelipeds in males than in females places Bamberus n. gen. in the family Chondropodinae . Bamberus in general view resembles three of the seven genera currently included in the Chondropodinae , i.e. Calozodion Gardiner, 1973 , Chondropodus Gutu, 2006 and Hoplomachus Gutu, 2002 . These four genera have a relatively elongated body, five well-developed pleonites with acute epimera, and a few setae often accompanied by a few robust spines on the basis of the first pereopod. Bamberus is most similar to Chondropodus— both of them lack plumose setae on pereopod 6 and have a slender cheliped in females ( Table 2 ). In contrast to Chondropodus the new genus lacks a spine on the first article of the antennule and on the basis of the first pereopod. TABLE 2. Comparison of morphological features distinguishing between Bamberus n. gen. , Calozodion, Chondropus and Hoplomachus .

character	Calozodion	Chondropodus	Hoplomachus	Bamberus
chela in female	robust (as in male)	slender	moderate strength	slender
rostrum	round	round	pointed	round
antennule peduncle article 1	with spines	1 spine	with spines	no spines
antenna peduncle article 2	long	long	short	long
antenna squama setation	3	3	5	3
mandible palp article 1 setation	4–6	1	1	1
labium palp setae	1	1	3	2
maxillule inner endite setation	3–5	4	4	2
pereopod 2 propodus/carpus length	2–3	2–3	little longer	1–2
pereopod 1 basis dorsal margin	spines	spines	spines	no spines
pereopod 6 plumose setae	present	absent	present	absent

The new genus can be immediately distinguished from the other chondropodiins by having a smooth and poorly-developed rostrum, compared with a large, acute and serrated rostrum in Julmarichardia , a well-developed exopod (reduced or absent in Vestigiramus ), by having only two segments in the accessory flagellum of the antennule (five segments in Zaraza ) and by having only a few setae on the mandibular palp (numerous plumose setae in Trichapseudes ). Bamberus n. gen. has a conspicuous apophysis on the uropod basis, apparently similar to that present in Vicinisyndes Gutu, 2007 and all members of the Whiteleggiidae Gutu, 1972 . A distal apophysis on the basis of the uropod is characteristic for many metapseudids but only in Vicinisyndes , Bamberus and the whiteleggiids is situated dorsally. Vicinisyndes , with only one free pleonite, is a member of the subfamily Synapseudinae Gutu 1972 , while the Whiteleggiidae is represented by three species in two genera which have a heavy and stronglysculptured integument.