Lumbrineris perkinsi Carrera-Parra, 2001

Çinar, Melih Ertan, 2009, Alien polychaete species (Annelida: Polychaeta) on the southern coast of Turkey (Levantine Sea, eastern Mediterranean), with 13 new records for the Mediterranean Sea, Journal of Natural History 43 (37 - 38), pp. 2283-2328 : 2299-2301

Lumbrineris perkinsi Carrera-Parra, 2001

( Figure 5 )

Lumbrineris perkinsi Carrera-Parra 2001: 607–608 , fig. 4k–p; Carrera-Parra 2006: 51–52, fig. 17a–.

Lumbrineris inflata ; Giangrande et al. 1981: 311–314, figs 1–5 (not Moore 1911).

Material examined

ESFM-POL/2005-59 , 9 September 2005, I skenderun Bay, D9, 36°45′59″ N, 35°48′18″ E, 25 m, stones, 2 specimens ; ESFM-POL/2005-191 , 13 September 2005, K 6, 2 m, Sarcotragus sp. , 2 specimens ; ESFM-POL/05-481 , 14 September 2005, K8, 1– 3 m, rocks, 51 specimens ; ESFM-POL/05-618 , 14 September 2005, K9, 0.1– 3 m, rocks, 15 specimens ; ESFM-POL/05-557 , 15 September 2005, K10, 0–1 m, rocks, 2 specimens ; ESFM-POL/2005-1327 , 19 September 2005, K 17, 2m, Sarcotragus sp. , 3 specimens ; ESFM-POL/2005-1301 , 19 September 2005, K17, 0.1 m, J. rubens , 1 specimen ; ESFM-POL/2005-814 , 19 September 2005, K17, 0.1– 3 m, rocks, 23 specimens ; ESFM-POL/2005-721 , 19 September 2005, K19, 0.1– 5 m, rocks, 2 specimens ; ESFM- POL/2005-787, 20 September 2005, K22, 0.1– 5 m, rocks, 25 specimens; ESFM-POL/ 2005-598 , 21 September 2005, K24, 0.1– 5 m, rocks, 15 specimens ; ESFM-POL/2005- 657 , 22 September 2005, K26, 0.1– 3 m, rocks, 29 specimens ; ESFM-POL/2005-1369 , 22 September 2005, K27, 0.4 m, Co. mediterranea , 5 specimens ; ESFM-POL/2005- 1214 , 22 September 2005, K27, 0.2 m, Brachiodontes pharaonis , 1 specimen ; ESFM- POL/2005-1149, 22 September 2005, K27, 0.4 m, J. rubens , 1 specimen; ESFM-POL/ 2005-1292 , 22 September 2005, K27, 0.4 m, H. scoparia , 2 specimens ; ESFM-POL/ 2005-1011 , 22 September 2005, K27, 0.1– 5 m, rocks, 5 specimens ; ESFM-POL/2005- 2200 , 24 September 2005, K30, 0.1 m, J. rubens , 1 specimen ; ESFM-POL/2005-2651 , 25 September 2005, K33, 0.1 m, Co. mediterranea , 3 specimens ; ESFM-POL/2005- 2310 , 3 October 2005, K44, 0.1 m, Cy. elegans , 12 specimens ; ESFM-POL/2005-2660 , 3 October 2005, K44, 0.1 m, Co. mediterranea , 57 specimens ; ESFM-POL/2005-2739 , 3 October 2005, K45, 0.1– 3 m, rocks, 14 specimens ; ESFM-POL/2005-2420 , 3 October 2005, K 44, 2 m, Sarcotragus sp. , 2 specimens ; ESFM-POL/2005-2216 , 3 October 2005, K44, 0.1 m, J. rubens , 24 specimens ; ESFM-POL/2005-2265 , 3 October 2005, K45, 0.2 m, Amphiroa rigida , 3 specimens ; ESFM-POL/2005-2301 , 4 October 2005, K48, 0.2 m, H. scoparia , 1 specimen ; ESFM-POL/2005-2281 , 7 October 2005, K53, 0.1 m, Cy. elegans , 3 specimens .

Description

Largest specimen complete, 12 mm long, 0.8 mm wide, with 70 chaetigers. Body pale brownish; two or three transverse brownish bars on dorsum of segments between peristomium and chaetiger 38. Prostomium globular, as long as wide, with a pair of nuchal organs placed posterolaterally, with well-developed buccal lips ventrally ( Figure 5A,B ). Peristomium shorter than prostomium. All parapodia well developed, especially between chaetigers 4 and 25; prechaetal lobe short, rounded; postchaetal lobe well developed, digitiform. Dorsal cirri short, present on all parapodia, with one to three notoaciculae. Composite multidentate hooded hooks numbering two per parapodium, present from chaetigers 1 to 20, with short blades (ca. 30 µm), with up to 10 distal teeth of similar size ( Figure 5C ). Simple multidentate hooded hooks from chaetiger 21 to last chaetiger, numbering three per parapodium, with up to eight teeth; proximal tooth bigger than others ( Figure 5D ). Limbate chaetae numbering four per parapodium, from chaetiger 1 to 36 ( Figure 5E ). Aciculae yellow, aristate, numbering three in anterior parapodia, one in posterior ones. Pygidium with terminal anus, with two pairs of anal cirri; dorsal cirri slightly longer that ventral cirri. Mandible divided for about half its length. Five pairs of maxillae; maxillary carriers shorter than MI, anterior end constricted. MI forceps-like with attachment lamella well developed. MII as long as MI, with five, triangular teeth. MIII with four teeth, proximal tooth shortest ( Figure 5F ). MIV bidentate, distal tooth longer than proximal ( Figure 5F ). MV free, prominent, lateral to MIV and MIII.

Distribution

Lumbrineris perkinsi was only known from the western Atlantic (Caribbean region) and eastern Pacific ( Panama) Oceans ( Carrera-Parra 2006). Before the original description of this species, it was previously reported from the Mediterranean as Lumbrineris inflata by Giangrande et al. (1981), who collected it from the Ischia Harbour (Tyrrhenian Sea, western Mediterranean). The figures (especially Figure 5B , maxillary apparatus of L. inflata ) and descriptions of the specimens identified as L. inflata by Giangrande et al. (1981) match with the original description of L. perkinsi . As the first identification of L. perkinsi took place in the Mediterranean Sea (under the name L. inflata ), it is impossible to reach a clear conclusion as to whether this species is native or alien to the Mediterranean. However, the dense populations of it on the southern coast of Turkey and the single record from the western Mediterranean might indicate that this species was introduced to the Mediterranean from the Suez Canal. However, its occurrence in the Indo-Pacific area should be checked.

Figures

Figure 5. Lumbrineris perkinsi: (A) anterior part, dorsal view (ESFM-POL/2005-191), (B) anterior part, ventral view, (C) composite multidentate hooded hook on chaetiger 3, (D) simple multidentate hooded hook on chaetiger 25, (E) limbate chaeta on chaetiger 10, (F) maxillae III (lower) and IV (upper). Scale bars: (A,B) 0.5 mm, (C) 23 µm, (D) 19 µm, (E) 30 µm, (F) 175 µm.