HOBSON: CLEANING SYMBIOSIS 



Table 2. — The types of ectoparasites and the fishes they infest, based on a survey of the fishes in the study area. 

 Where more than one species of parasites is included under a heading, the number in parentheses following 

 the name of each fish thereunder indicates how many different species of that type are represented on that 

 fish. For all fish species listed, the number of infested individuals is shown over the number of individuals ex- 

 amined, followed by the range in numbers of individual parasites of that type which were taken from that species 

 of fish. 



COPEPODS 



BOMOLOCHIDAE (6 species of 3 genera) 

 Fishes infested with members of 



this family: 

 PaTnlakrax dalhralus (t) 2/8: 1-2 

 P. nrkuliirr (2) 5/11: 1-20 

 Phanrrodon atripri (1) 1/13: 1 

 Rhacockilul vacca (1) 3/15: 1 

 M\iTom£trus minimus (1) 1/7: 1 

 Hypsypopi rubiiunda (1) 1/20: 1 

 ScoTpaena guttata (I) 6/14: 2-56 

 Srbastes myslinus (1) 1/9: 1 

 S. strrantndts (1) 2/11: 1-8 

 Uxyltbiui pictus (1) 1/8: 1 

 Athrrinopi aginis (1) 2/13: 1-4 

 Pleuronichlhys cornosus (1) 6/10: 1-11 



CALIGIDAE (13 species of 2 genera) 

 Fishes infestecf with members of 



this family; 

 Paralabrax clathratus (2) 4/8: 1-5 

 P. nrbuliln (3) 4/11: 5-27 

 Caulolatilus prirufpl (1) 1/4: 2 

 jintiolrfmus davidsoni (1) 1/8: 1 

 Chfitotrrma saturnum (I) 2/16: 1 

 MrdMuna calilarnwniii (2) 12/13; 1-75 

 Cirrlla ntgricam (3) l/IO; 1-14 

 Embiotoca ;actiom (2) 2/15; 1-2 

 Phanerodon atripts (1) 5/13: 1-5 

 Rhatothilu! toxotr, (3) 10/10: 1-IQ 

 R vacca (2) 4/15; 1-11 

 CKromii pitnctipinnis (I) 10/10; 2-39 

 Hypiypopi rubiitinda (2) 19/20: 1-144 

 Pimeiomctopon puUhrum (3) 13/14: 1-70 

 OxyiMs califorixra (3) 13/38; 1-59 

 Scorpafna guttata (1) 7/14: 1-14 

 Sebaites atrovirent (3) 6/16; 1 

 S. carnata, (2) 3/11: I 

 S, chryiomehi (1) 1/7: 1 

 S. conitrllatus (1) 2/2: 1-5 

 S. mmiatus (I) 1/5: 2 

 S. myitinici (3) 5/9: 1-5 

 S. pauciipimi (I) 3/3; 1 

 S. nrranoidt! (3) 8/11: MO 

 S. srrricrps (2) 15/15: 1-25 

 Scorpaenichtkyt marmoratui (2) 8/10: 1-42 

 Heteroitichui mstratus (1) 2/13; 1-2 



COPEPODS-Cont. 

 CALIGIDAE-Cont. 

 Athirinops aljinis (1) 13/13: 1-23 

 Pleuronichthys toenasu! (1) 5/10: 1-5 



DICHELESTHIIDAE (2 species of 1 genus) 

 Fishes infested with parasites 



of this fomily; 

 Gymnothorax mordax (1) 1/1: 9 

 Paralabrax nibuhlcr (1) 5/11; 2-70 



LERNAEIDAE (1 species) 



Fishes infested by this porosite: 

 Trachurus symmetricus (1) 1/7; 1 

 Aniiotrcmus davidsoni (1) 1/8: 1 

 Ckeilolrema saturniim (1) 2/16; 1-2 

 Mrdialutta calilorniensis (1) 5/13: 2-7 

 Brachyiiliui Irenatui (1) 1/5; 1 

 Embiotoca lackwni (1) 2/15: 1-2 

 Hypsur^us caryi (1) 2/11: 1-2 

 Phancrodon iurcalus (I) 3/12; 1-3 

 Rhacockilus toxotts (1) 1/10; 1 

 R. vacca (1) 2/15; 1 

 Micrometrus munmui (I) 5/7; 1-6 

 .llhcrinops affimi (I) 2/13: 1-4 



CHONDRACANTHIDAE (5 species of 5 genera) 

 Fishes infested with parasites of 



this family: 

 Oxyjulis calijoritua (1) 13/38; 1-4 

 Scorpaena guttata (1) 2/14: 1-5 

 Scorpaenichthys marmoratus (I) 4/10; 1-4 

 Hrtrrosltchui roitratiu (1) 7/13: 1-7 

 PIrurortuhthys coenoli,, (1) 7/10: 1-47 



LERNEOPODIDAE (6 species of 4 genera) 



Fishes infested by parasites of 

 this family: 



Cheilotrema ialuriium (1) 1/16: 1 



Girrlla nigricans (1) 1/10: 1 



Phancrodon atnpcs (I) 5/13: 1-4 



Rhacochilus vacca (1) 1/15: 1 



Chromis punctipinnis (1) 1/10: 1 



Scbastcs atrovirfns (1) 1/16: 4 



S, constellates (1) 1/2: 1 



S minialus (1) 5/5; 2-8 

 ARGULIDAE (1 species) 



Fish infested with this parasite: 



.itkcrinopsis calijornicnsts l/I; 2 



ISOPODS 

 CYMOTHOIDAE (1 species) 



Fish infested with this parasite: 

 Scbastcs mystinus 1/9: 1 



GNATHIID LARVAE (number of species not 

 determined) 

 Fishes infested with these parasites: 

 Chromis punctipinnis 1/10: 1 

 Hypsypops rubicunda 4/20: 1-8 

 Pimclomctopon pnlchrum 3/14; 1-4 

 Scbastcs atrovircns 4/16: 1-20 

 S, carnatus 3/11: 1 

 S. chrysomclas 1/11: 2 

 S. constcllatus 1/2: 1 

 S. scrranoidcs 1/11; 1 

 S. scrriccps 3/15: 1-5 

 Oxylcbiu! pictus 3/8: 1-3 

 Scorpaenichthys marmoratus 3/10; 2-5 



MONOGENETIC TREMATODE (1 species) 

 Fishes infested with this parasite; 

 Medialuna calijornicnsis 6/13: 2-16 

 Girclla nigricans 4/10: 1-4 

 Rhacockilus toxotes 2/10: 1 

 R. vacca 2/15: 1-18 

 Hypsypopi rubicunda 1/20: 1 

 Pimclomctopon pulchrum 10/14: 1-26 

 Scorpaena guttata 2/14: 5-8 

 Scbastcs atrovircns 7/16; 1 

 S. constcllatus 1/2: 1 

 S. minidtus 2/5; 1-2 

 S. scrranoidcs 3/11: 1 -26 

 S. scrriccps 2/15; 1-3 

 Hctcrostichus roslratus 6/13; 1-7 



LEECH (1 species) 



Fishes infested with this parasite: 

 Hypsypops rubicunda 2/20: 1 

 Scbastcs scrranoidcs l/Il: 4 

 Hctcrostichus rostralus 2/13; 1-2 



FISHES ON WHICH NO PARASITES WERE 

 FOUND: 

 Xcnistius calijornicnsis 0/1 

 Halickocrcs scmicinctus 0/10 

 Coryphoptcrus nicholsi 0/5 



indicate. They are the most mobile of the par- 

 asites, and probably many escaped when their 

 host fish was collected. The monogenetic trem- 

 atode occurred on the outer body surface of 13 

 species of fishes, and the leech occurred simi- 

 larly on 3 species. However, neither was found 

 to be taken by the cleaners. The fish species 

 hosting the various isopods and also the trema- 

 tode and leech are listed in Table 2. Listed also 

 are the three fish-species on which no ectopara- 

 sites were found. 



The above summary of the survey results gives 

 a general picture of the ectoparasites infesting 

 the fishes that co-occur with the cleaners and 

 might be regarded as a list of the potential prey 

 of the cleaning fishes. The following material 

 considers the parasites that actually are known 

 to be ]3rey. 



Ectoparasites in the diet of cleaners relative 

 to ectoparasites on fishes that are clearied. — 

 Many of the ectoparasites listed above infest 



505 



