The cumacean genus Iphinoe (Crustacea: Peracarida) from Italian waters and I. daphne n. sp. from the northwestern Adriatic Sea, Mediterranean Author Mazziotti, Cristina Author Lezzi, Marco text Zootaxa 2020 2020-04-20 4766 2 331 357 journal article 22827 10.11646/zootaxa.4766.2.4 a8eca2e8-2e0e-4c46-b776-110c59427ac6 1175-5334 3764096 urn:lsid:zoobank.org:pub:3C7F577B-0BF5-4C5C-9294-AF44D9FCB55B Iphinoe trispinosa ( Goodsir, 1843 ) Cuma trispinosa , Goodsir, 1843: 126 , Pl. III, figs. 1–7. Halia trispinosa Bate 1856: 458 pl. 14, 15, fig 5. Venilia gracilis Bate 1856: 460 pl. 15, fig 7. Cyrianassa gracilis Bate 1856: 187 . Iphinoe gracilis Norman 1868: 272 . Remarks . Iphinoe trispinosa is usually confused with other Mediterranean species because it shares several characteristics with them that are not easy to recognize. In adult males, antenna 2 reaches the end of the pleon. Distribution and Ecology . Iphinoe trispinosa was recorded by Graeffe (1902) and Fage (1940) in the northwest Mediterranean Sea; however, after the revision of the genus Iphinoe by Ledoyer (1965) , it has never been recorded again, except for the record by Ayari & Afli (2003) from the Gulf of Tunis . We agree with Corbera & Garcia-Rubies (1998 ) and consider all the Mediterranean records of I. trispinosa as misidentifications of I. douniae . TABLE 4. Mean values (± standard deviation, in mm) of total length (TL), carapace length (CL), carapace depth (CD) and TL/CL, CL/CD ratios of populations of the seven Iphinoe species collected along the Italian coasts. (F)=Female; (M)=Male. Number of specimens examined (n) at each station is reported in the first column. Only adult specimens have been measured.

n	TL		CL		CD		TL/CL		CL/CD
Iphinoe armata	F	M	F	M	F	M	F	M	F	M	F	M
St. 5	6	6.12±0.5	1.75±0.11	0.91±0.07	3.58±0.33	1.92±0.12
St. 11	14	18	6.48±0.65	6.80±0.89	1.70±0.14	1.71±0.19	0.83±0.11	0.81±0.08	3.81±0.22	3.97±0.25	2.07±0.23	2.13±0.25
St. 28	11	10	7.27±1.01	6.09±0.64	1.63±0.21	1.39±0.12	0.77±0.13	0.64±0.07	4.47±0.56	4.39±0.38	2.13±0.22	2.18±0.14
St. 30	7	3	5.53±0.56	5.56±0.89	1.38±0.14	1.15±0.13	0.65±0.08	0.54±0.05	4.01±0.14	4.82±0.60	2.11±0.65	2.12±0.07
St. 31	10	9	6.52±1.02	6.29±0.73	1.55±0.77	1.45±0.17	0.77±0.12	0.67±0.08	4.22±0.26	4.35±0.29	2.00±0.24	2.16±0.14
St. 33	2	6.50±0.55	1.61±0.15	0.76±0.10	4.05±0.03	2.12±0.08
St. 35	7	4	7.65±0.81	8.00±1.23	1.93±0.22	1.99±0.27	0.96±0.11	0.91±0.10	3.97±0.27	4.01±0.28	2.02±0.16	2.19±0.13
St. 36	4	3	5.84±1.16	5.64±1.16	1.46±0.28	1.54±0.10	1.75±0.09	0.69±0.08	3.99±0.20	3.64±0.94	1.93±0.15	2.40±0.19
St. 37	3	1	4.22±0.36	4.31	1.66±0.19	1.6	0.83±0.07	0.8	2.55±0.23	2.69	1.99±0.07	2
St. 41	2	4.76±0.09	1.80±0.11	0.96±0.07	2.65±0.20	1.88±0.02
St. 42	2	1	4.7±0.17	3.5	1.79±0.16	1.38	0.95±0.06	0.75	2.64±0.15	2.54	1.88±0.06	1.84
St. 43	3	4.30±0.20	1.6±0.83	0.83±0.12	2.59±0.2	1.99±0.06
St. 44	3	4.69±0.08	1.82±0.2	0.9±0.11	2.58±0.4	2.02±0.05
St. 45	2	1	4.46±0.34	3.48	1.78±0.06	1.49	0.89±0.02	0.75	2.51±0.10	2.58	2.01±0.02	1.99
Iphinoe daphne
St. 22	25	25	5.00±0.74	4.98±0.84	1.24±0.15	1.24±0.2	0.55±0.08	0.56±0.10	4.02±0.19	3.93±0.56	2.26±0.17	2.20±0.034
Iphinoe elisae
St. 2	2	4.64±0.03	1.19±0.10	0.58±0.08	3.92±0.35	2.08±0.11
St. 26	1	1	6.07	8.22	1.32	1.73	0.65	0.8	4.60	4.75	2.08	2.16
Iphinoe inermis
St. 2	3	7.37±1.20	1.72±0.26	0.85±0.15	4.27±0.14	2.04±0.15
St. 10	7	5.65±0.51	1.55±0.14	0.74±0.07	3.66±0.14	2.09±0.24	7 F
Iphinoe rhodaniensis
St. 1	6	1	5.62±0.58	5.73	1.52±0.16	1.52	0.59±0.09	0.58	3.71±0.34	3.77	2.60±0.24	2.62
St. 3	1	6.29	1.7	0.67	3.7	2.54
St. 4	8	8	6.62±0.21	1.87±0.01	0.74±0.02	3.54±0.11	2.53±0.07

......continued on the next page TABLE 4. (Continued)

n	TL		CL		CD		TL/CL		CL/CD
Iphinoe rhodaniensis	F	M	F	M	F	M	F	M	F	M	F	M
St. 6	1	2	5.19	7.27±0.29	1.43	1.84±0.28	0.52	0.70±0.03	3.63	3.99±0.46	2.75	2.62±0.30
St. 7	3	7.33±0.26	1.89±0.01	0.77±0.03	3.89±0.14	2.44±0.09
St. 8	4	6.21±0.31	1.57±0.07	0.59±0.04	3.96±0.29	2.66±0.18
St. 9	6	6.34±0.37	1.69±0.12	0.67±0.11	3.75±0.10	2.56±0.30
St. 11	1	2	5.56	6.59	1.60	1.73	0.61	0.74	3.47	3.82	2.62	2.35
St. 12	5	6.54±0.48	1.61±0.12	0.71±0.06	4.08±0.44	2.28±0.16
St. 13	3	6.7±0.53	1.72±0.12	0.75±0.16	3.90±0.06	2.35±0.34
St. 14	3	7.21±0.23	1.77±0.01	0.67±0.02	3.67±0.12	2.44±0.08
St. 26	3	1	6.91±0.98	7.84	1.55±0.14	1.76	0.61±0.08	0.79	4.42±0.23	4.46	2.57±0.18	2.23
St. 27	1	7.92	1.71	0.7	4.63	2.44
St. 29	12	3	7.33±0.87	8.20±0.41	1.87±0.35	1.77±0.03	0.83±0.11	0.83±0.08	3.96±0.29	4.61±0.19	2.25±0.28	2.15±0.21
St. 39	4	1	5.14±0.37	5.05	1.22±0.25	1.27	0.57±0.10	0.54	4.30±0.61	3.98	2.12±0.20	2.35
Iphinoe serrata
St. 17	1	5.86	1.42	0.57	4.13	2.49
St. 25	1	6.47±0.18	1.75±0.04	0.64±0.06	3.71±0.03	2.73±0.19
Iphinoe tenella
St. 6	1	1	5.75	5.75	1.53	1.44	0.68	0.76	3.76	3.99	2.25	1.89
St. 26	2	7.55±0.41	1.65±0.01	0.85±0.07	4.58±0.29	1.95±0.18
St. 32	1	5.61	1.32	0.7	4.25	1.89
St. 34	1	5.37	1.62	0.8	3.32	2.00
St. 38	15 F	3	4.72±0.75	4.82±0.63	1.51±0.19	1.5±0.13	0.73±0.08	0.77±0.08	3.12±0.31	3.21±0.25	2.06±0.10	1.96±0.04
St. 40	2	6.18±2.21	1.42±0.50	0.61±0.22	4.76±1.72	2.34±0.02

According to Marusso (2006) , Iphinoe trispinosa occurs in areas 1, 2, 3 and 9 of the Bianchi (2004) classification ( Table 3 ). However, we failed to record the species in our samples. In light of the above, we believe that this species is present neither in Italian waters, nor anywhere else in the Mediterranean Sea. It is difficult to delineate the habitat type of I. trispinosa because it has often been misidentified with other species ( Corbera & Garcia-Rubies 1998 ). In the native range (Northeast Atlantic), I. trispinosa is usually found on fine sand in the infralittoral zone ( Cornet et al. 1983 ; Reis et al. 1982 ). It is also frequent in infralittoral gravelly sand and coarse sediment ( Connor et al. 2004 ).