Octopus bimaculoides predatory behaviors (N=10) were scored by one trained experimenter from recorded video footage. For each video of visually-evoked prey capture, we classified the two most reliably-identifiable phases of the octopuses visual attack the approach and the strike. For all successful attacks, the observer visually assessed the arms directly involved in the prey capture, meaning only the arms that were at any point in contact with prey, and scored their recruitment order. Since octopuses have a bilaterally symmetrical body, arms were numbered from I to IV, anterior to posterior and associated either to the right (R1, R2, R3 or R4) or left side (L1, L2, L3 or L4) of the body as previously reported. 

A subset of 10% of the prey capture was analyzed by a second annotator to evaluate for inter-observer reliability using an unweighted Cohen’s kappa test (annotator2 table)

Below is the primary key for the table: 

Column	Title																			
A	Date	Date of the experiment 																		
B	Octopus	"11,12,13,14,15,16,17,18,19,20"																		
C	prey	"crab, shrimp, shrimp2,crab2"																		
		"random'diet  (13,14,15,16,17,18)"	shrimp or crab day by flipping a coin 																	
		"alternated diet' (11,12,17,18)"	 prey type 1 (shrimp or crab) – prey type 2 (crab or shrimp) – prey type 1  (shrimp2 or shrimp2) 																	
D	prey #	"1,2,3,4,5,6"																		
		Each day the Octopus received up to 6 items of the same prey																		
E	Attempt (Att) #	"1,2,3,4"																		
		Most of it is 1 as only for the first animals this criterion was scored - only successful captures were then considered and scored																		
F	Success	Yes/no	Only successful prey captures were used for analysis																	
G	Approach	"Ambush, Pursuit, Stalking, not determined (""nd"")"																		
		Ambush1	'lie and wait'																	
		Pursuit1	"Prey that has been detected flees, and the predator follows"																	
		Stalking1	Gentle slow approach prior to sudden assault 																	
		nd	not determined																	
H	Strike	"Reach, Waving, Syn, parachuting,snap, others (""mix"" or ""nd""), not available (""na"" )"																		
		Sequential recruitment of 1 or 3 arms (Sequential)	Reach2	Wave-like propagation of a bend that travels from the base of the arm toward the tip 																
			Waving3	"Seemingly undirected movement that involves swaying the arms around the prey, torsional movements, and no bend propagations"																
		Synchronous recruitment of 2 or more arms (synchronous)	Synchronous reach (syn)	Synchronous reach of 2 to 6 arms with either pounce or straight strike																
			Parachuting4	"Pounce on top of the prey, spread the web and then feeling underneath for food"																
			Snaptrap	Synchronously elongating two groups of 2-4 arms in two directions on either the side of the prey (often above it too)																
																				
		Others/NotDetermined	"""mix"" ""nd"""																	
		"""na"""	not available 																	
I	Eye viewing the prey when striking	"l,r, not considered (lr, blind,na) "																		
		"""l'"	left																	
		"""r'"	right																	
		"""lr"""	likely binocular																	
		"""blind"""	not visual																	
		"""na"""	not available 																	
"J,K,L,M,M,O,P,Q"	"Arm recruited (A1,A2,A3,A4,A5,A6,A7,A8)"	"R1,R2,R3,R4,L1,L2,L3,L4"																		
		For sequential attack	The arms appear in the order where they were recruited with the first arm being the first one touching the prey.																	
		For synchronous	The order do not matter as the arm are recruited synchronously 																	
																				
"1. Based on Hanlon and Messenger, 2018 and combine with personal observation;  2. Gutfreund et al., 1996 O. vulgaris; 3.  Richter et al.,2015 - O. vulgaris (describe as exploratory movement); 4. Hanlon and Wolterding, 1989; O. briareus"